Two Factor Auth List

Actors Federal Credit Union

Tell them to support 2FA on Twitter

Ally Bank

Altra Federal Credit Union

Tell them to support 2FA on Twitter

America First Credit Union

Tell them to support 2FA on Twitter

American Express

Tell them to support 2FA on Twitter

Andrews Federal Credit Union

Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook

Australia and New Zealand Banking Group

Tell them to support 2FA on Twitter

Banca Mediolanum

Tell them to support 2FA on Twitter

Bank Central Asia (BCA)

Bank of America

Bank of China (Hong Kong)

Barclays UK

Barclays US

BMO Bank of Montreal

Tell them to support 2FA on Twitter

BMO Harris Bank

Tell them to support 2FA on Twitter

Boeing Employee Credit Union

Tell them to support 2FA on Twitter

BofI Federal Bank

Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email

Capital One

Tell them to support 2FA on Twitter

Capital One 360

Tell them to support 2FA on Twitter

CDC Federal Credit Union

Tell them to support 2FA on Twitter

Chase

CIBC

Tell them to support 2FA on Twitter

Citibank

Tell them to support 2FA on Twitter

Citibank Australia

Citizens Bank

Tell them to support 2FA on Twitter

comdirect

Tell them to support 2FA on Twitter

Commonwealth Bank of Australia

Credit Union Australia

Tell them to support 2FA on Twitter

Desjardins

Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook

Deutsche Kreditbank (DKB)

Tell them to support 2FA on Facebook

Digital Federal Credit Union

Discover

Tell them to support 2FA on Twitter

DNB

everbank.com

Fairwinds

Fifth Third Bank

Tell them to support 2FA on Twitter

Final

First Direct

First Republic Bank

First Tech Federal Credit Union

GE Capital Bank

Tell them to support 2FA on Twitter

Halifax

Tell them to support 2FA on Twitter

Handelsbanken

HSBC

Huntington National Bank

Tell them to support 2FA on Twitter

ING (Luxembourg)

Intesa Sanpaolo

LendingClub

Tell them to support 2FA on Twitter

Lloyds Bank

Tell them to support 2FA on Twitter

MandT Bank

Tell them to support 2FA on Twitter

MBNA Canada

Tell them to support 2FA on Twitter

Meridian Credit Union

Tell them to support 2FA on Twitter

N26

Tell them to support 2FA on Twitter

Nationwide Building Society

Natwest UK

Navy Federal Credit Union

Tell them to support 2FA on Twitter

Nordea Sverige

Nordnet

Tell them to support 2FA on Twitter

Northeast Credit Union

Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook

Pacific Continental

Partners Federal Credit Union

Patelco Credit Union

PenFed

Tell them to support 2FA on Twitter

PNC Bank

Tell them to support 2FA on Twitter

Postbank

Tell them to support 2FA on Twitter

Raiffeisen Bank CZ

RBC Royal Bank

Tell them to support 2FA on Twitter

Regions Bank

Tell them to support 2FA on Twitter

San Diego County Credit Union

Tell them to support 2FA on Twitter

San Francisco Fire Credit Union In Progress!

Thank them for working on 2FA

Santa Clara County Federal Credit Union

Tell them to support 2FA on Twitter

SchoolsFirst FCU

Tell them to support 2FA on Twitter

Scotiabank

Tell them to support 2FA on Twitter

SEB

Service Credit Union

Simple

Tell them to support 2FA on Twitter

Sparkasse

Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email

State Bank of India

SunTrust

Tell them to support 2FA on Twitter

Swedbank

Tangerine

Tell them to support 2FA on Twitter

TARGOBANK

Tell them to support 2FA on Twitter

TBC Bank

TD Bank

Tell them to support 2FA on Twitter

TD Canada Trust

Tell them to support 2FA on Twitter

Triodos Bank Deutschland

Tell them to support 2FA on Twitter

TSB Bank

Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook

Umpqua Bank

Tell them to support 2FA on Twitter

Union Bank

Tell them to support 2FA on Twitter

US Bank

Tell them to support 2FA on Twitter

USAA

UW Credit Union

VyStar Credit Union

Tell them to support 2FA on Twitter

Wells Fargo

Wescom Credit Union

Tell them to support 2FA on Twitter

Zag Bank

Tell them to support 2FA on Twitter

ZenBanx

Tell them to support 2FA on Twitter

Zurich Cantonal Bank (ZKB)

Backup and Sync	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
AeroFS
Apple iCloud
Backblaze
Bitcasa	Tell them to support 2FA on Twitter
Box
CloudApp	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
CrashPlan	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Dropbox
Evernote
FileThis	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Frostbox
Google Drive
hubiC	Tell them to support 2FA on Twitter
IDrive	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
JustCloud	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Mega	Tell them to support 2FA on Twitter
OneDrive
Pogoplug In Progress!	Thank them for working on 2FA
QNAP
SmartBox
SpiderOak	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
SugarSync	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Sync
Synology
ThisData
Tresorit
XXL Cloud In Progress!	Thank them for working on 2FA
Yandex.Disk
Zetta.net

Cloud Computing	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Amazon Web Services
appFog	Tell them to support 2FA on Twitter
Brightbox	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
Cloud 66
cloud.ca
Datapipe
DigitalOcean
EngineYard
fortrabbit
Google Cloud Platform
Heroku
IBM BlueMix	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Joyent
LeaseWeb
Linode
Microsoft Azure
OpenShift	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Packet
Rackspace
RightScale	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Scaleway	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Scalr
SingleHop
Tilaa
Userify
Vultr

Communication	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Basecamp
Campfire
Customer.io	Tell them to support 2FA on Twitter
Discord
Disqus	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Doodle	Tell them to support 2FA on Twitter
Fleep	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Flowdock	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Front App
Grape
HipChat	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
MailChimp
Mailgun	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Maxemail
Peerio
Ryver	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Salesforce
SendGrid
Sendloop
Skype (via Microsoft Account)
Slack
SocketLabs
SparkPost
Stackfield
Telegram
ToutApp	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
WhatsApp	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Yammer	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook

Cryptocurrencies	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
BitBay
Bitcoin-Central
Bitcoin.de
Bitcoins Norway
BitGo
Bitlish
Bitpay
Bitreserve
Bitstamp
Blockchain
BTC-E
BTCJam
CampBX
CEX.IO
ChangeTip
Circle
CleverCoin
Coin Cafe
Coinapult
Coinbase
Coinfloor
Coinify (Merchants)
Coinjar
Coinkite
Coins.ph
Coinsetter
Cryptsy
Eclipse Mining Consortium
Justcoin Exchange
Kraken
LocalBitcoins
Uphold
WeMineLTC.com
Xapo

Developer	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Aha!
Airbrake	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Algolia
AppVeyor	Tell them to support 2FA on Twitter Tell them to support 2FA via Email
aTech Media
Balsamiq	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Bitbucket
Bugsnag
Cedexis	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Cloud9	Tell them to support 2FA on Twitter
CM Telecom
Code Climate
Codeanywhere
Codeship	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Compose.io
Deploybot	Tell them to support 2FA on Twitter
Docker	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Esri
FogBugz & Kiln
GitHub
GitLab
Hashicorp Atlas
Infobip
JetBrains	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Jidoteki
Koding
Launchpad
Looker
Mapbox
MongoDB Cloud Manager
New Relic	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Nexmo
Papertrail	Tell them to support 2FA on Twitter
Phacility
Pivotal Tracker	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Plivo	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
PyPI	Tell them to support 2FA on Twitter
PythonAnywhere
RBCommons
Rollbar
RubyGems.org	Tell them to support 2FA on Twitter Tell them to support 2FA via Email
Sauce Labs	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
Semaphore
Sentry
SourceForge	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Status.io
StatusCake
StatusPage.io	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Taiga.io	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Twilio
Unfuddle
Uptime Robot	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Visual Studio Online
Zapier	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook

Domains	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
007Names
101domain
10Dollar	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
123 Reg	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
1and1	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Above.com
Cloudflare
ClouDNS	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Crazy Domains	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Directnic
DNS Made Easy
DNSimple
Domain Monster	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Domain.com	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
domainFACTORY	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Domains4Bitcoins.com
DomainsAtCost	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Domeny.tv
Dyn
Dynadot
easyDNS
eNom
EuroDNS
Fabulous
Fasthosts	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Gandi
GoDaddy
Google Domains
Heart Internet	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Hover.com
Hurricane Electric
Incapsula
Internet.bs
InterNetworX (INWX)
iWantMyName
Loopia
MarkMonitor
Metaname
Moniker	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
MyDomain	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Name.com
Namecheap
NameSilo.com
NamesPro.ca	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
NearlyFreeSpeech.net
Netfirms	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Netim	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Netregistry	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Network Solutions	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
No-IP	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Nominet
Openprovider
OpenSRS
pairNIC
PointDNS	Tell them to support 2FA on Twitter
porkbun
Register4Less
Registro.br
STRATO	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Uniregistry
Verio	Tell them to support 2FA on Twitter

Education	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Academic Earth	Tell them to support 2FA on Twitter
Antagning.se	Tell them to support 2FA on Twitter
Certified Wireless Network Professional (CWNP)	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
Clever
Code School	Tell them to support 2FA on Twitter
Codecademy	Tell them to support 2FA on Twitter
College Of DuPage	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
CompTIA	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Coursera	Tell them to support 2FA on Twitter
CSN
Duolingo	Tell them to support 2FA on Twitter
EC-Council
Edmodo	Tell them to support 2FA on Twitter
edX	Tell them to support 2FA on Twitter
Illinois Institute Of Technology	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
ISACA	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Montclair State University	Tell them to support 2FA on Twitter
My Study Life	Tell them to support 2FA on Twitter
Oplerno
PushCoin
Robert Morris University	Tell them to support 2FA on Twitter
Royal Roads University	Tell them to support 2FA on Twitter
SchoolSoft	Tell them to support 2FA via Email
Temple University
Udacity	Tell them to support 2FA on Twitter
Udemy	Tell them to support 2FA on Twitter
University of Michigan
Virginia Tech

Email	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Aol Mail
FastMail
Freenet	Tell them to support 2FA on Facebook
Gmail
GMX	Tell them to support 2FA on Twitter
Hushmail
Mail.com	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Mail.Ru
mailbox.org
Mailstache	Tell them to support 2FA on Twitter
Outlook.com
Pobox
Posteo
ProtonMail	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Riseup Mail	Tell them to support 2FA on Twitter
Runbox	Tell them to support 2FA on Twitter
T-Online	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Thexyz
Web.de	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Yahoo Japan Mail
Yahoo Mail
Yandex.Mail
Zimbra
Zoho Mail

Entertainment	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Bandcamp	Tell them to support 2FA on Twitter
Beam
CD Baby	Tell them to support 2FA on Twitter
Google Play
hitbox	Tell them to support 2FA on Twitter
Hulu	Tell them to support 2FA on Twitter
IMDb	Tell them to support 2FA on Twitter
Last.fm	Tell them to support 2FA on Twitter
Netflix	Tell them to support 2FA on Twitter
Picarto.TV	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
Plex	Tell them to support 2FA on Twitter
Sling TV	Tell them to support 2FA on Twitter
SoundCloud	Tell them to support 2FA on Twitter
Spotify	Tell them to support 2FA on Twitter
TIDAL	Tell them to support 2FA on Twitter
TiVo	Tell them to support 2FA on Twitter
Twitch
Ustream	Tell them to support 2FA on Twitter
Vessel	Tell them to support 2FA on Twitter
Vimeo	Tell them to support 2FA on Twitter
YouTube

Finance	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Adirondack Insurance Exchange
ADP	Tell them to support 2FA on Twitter
Credit Karma	Tell them to support 2FA on Twitter
ditech	Tell them to support 2FA on Twitter
FreeAgent
FreshBooks	Tell them to support 2FA on Twitter
Geico	Tell them to support 2FA on Twitter
Gusto
HelloWallet	Tell them to support 2FA on Twitter
InEx Finance	Tell them to support 2FA on Twitter
Intuit TurboTax
Justworks
Kiva	Tell them to support 2FA on Twitter
Kualto	Tell them to support 2FA on Twitter
LevelUp	Tell them to support 2FA on Twitter
Mint
Mint Bills (formerly Check)	Tell them to support 2FA on Twitter
Northwestern Mutual	Tell them to support 2FA on Facebook
Paychex
Paytrust
Pocketsmith
Popmoney	Tell them to support 2FA on Twitter
President's Choice Financial	Tell them to support 2FA on Twitter
Progressive	Tell them to support 2FA on Twitter
Quickbooks Online
QuickFile
Quizzle	Tell them to support 2FA on Twitter
Ripple Trade
Santander UK
Shoeboxed	Tell them to support 2FA on Twitter
SimpleTax
TransferWise	Tell them to support 2FA on Twitter
Treasury Direct
Valic	Tell them to support 2FA on Twitter
Xero
Yodlee Moneycenter	Tell them to support 2FA on Twitter
You Need A Budget (YNAB)	Tell them to support 2FA on Twitter

Food	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Dutch Bros	Tell them to support 2FA on Twitter
Max	Tell them to support 2FA on Twitter
Starbucks	Tell them to support 2FA on Twitter
Taco Bell	Tell them to support 2FA on Twitter

Gaming	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Ankama
Black Desert Online	Tell them to support 2FA on Twitter
Blade & Soul
Blizzard
Curse	Tell them to support 2FA on Twitter
Desura	Tell them to support 2FA on Twitter
Elder Scrolls Online
Enjin
EVE Online
GameFly	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Garena Online
GeForce (Nvidia)	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
GOG.com
GREE
Guild Wars 2
Humble Bundle
Itch.io
League of Legends	Tell them to support 2FA on Twitter
Mojang	Tell them to support 2FA on Twitter
Nintendo Network	Tell them to support 2FA on Twitter
Origin
Playstation Network
Roberts Space Industries
Rockstar Games Social Club	Tell them to support 2FA on Twitter
RuneScape
Square Enix
Star Wars: The Old Republic
Stardock Corporation	Tell them to support 2FA on Twitter
Steam
Tibia
Trion Worlds
Uplay
Wargaming	Tell them to support 2FA on Twitter
WildStar
Xbox Live

Health	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
23andMe	Tell them to support 2FA on Twitter
Carilion Clinic	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
CVS/Caremark	Tell them to support 2FA on Twitter
drchrono
Drugs.com In Progress!	Thank them for working on 2FA
Elation Health	Tell them to support 2FA on Twitter
FitBit	Tell them to support 2FA on Twitter
FollowMyHealth
Google Fit
Healthcare.gov	Tell them to support 2FA on Twitter
HealthVault (w/Microsoft Account)
MedicAlert	Tell them to support 2FA on Twitter
Misfit	Tell them to support 2FA on Twitter
myfitnesspal	Tell them to support 2FA on Twitter
Runtastic	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
WebMD	Tell them to support 2FA on Twitter
Withings	Tell them to support 2FA on Twitter

Hosting/VPS	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
34SP.com
ARP Networks	Tell them to support 2FA on Twitter
Binary Lane
BlueFur Web Hosting	Tell them to support 2FA on Twitter
Bluehost	Tell them to support 2FA on Twitter
ChunkHost
CloudAtCost	Tell them to support 2FA on Twitter
CloudShards	Tell them to support 2FA on Twitter
Cloudways
cyon
Dreamhost
Easy
Fastly
Glesys
Globat	Tell them to support 2FA on Twitter
Hetzner Online
ICUK
Infomaniak
InMotion Hosting	Tell them to support 2FA on Twitter
iPage	Tell them to support 2FA on Twitter
Liquid Web
Mammoth Networks
MaxCDN
Media Temple	Tell them to support 2FA on Twitter
Mittwald	Tell them to support 2FA on Twitter
NearlyFreeSpeech.NET
Netcup
One.com	Tell them to support 2FA on Twitter
Online
OVH
PlanetHoster
Rackspace
RamNode
Scaleway	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Site5	Tell them to support 2FA on Twitter
Softlayer
SpeedIT Solutions
Squarespace	Tell them to support 2FA on Twitter
UKFast
Ukraine
Vultr
WebFaction
Weebly	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
WP Engine

Identity Management	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
1Password	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
Bitium
Centrify
Clavid
CloudEntr
Dashlane
Docusign	Tell them to support 2FA on Twitter
ID.me	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
Keeper
Keybase	Tell them to support 2FA on Twitter
LastPass
Monkey Box
MyDigipass.com
Okta
OneLogin
Passpack
Persowna
RoboForm
SAASPASS
SecureSafe
True Key

Remote Access	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Amazon AWS WorkSpaces
join.me (w/ LogMeIn account)
LogMeIn
O&O Syspectr
ScreenConnect
TeamViewer

Investing	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Acorns	Tell them to support 2FA on Twitter
Betterment	Tell them to support 2FA on Twitter
Charles Schwab
COL Financial	Tell them to support 2FA on Twitter
E*Trade
Fidelity Investments
HealthEquity	Tell them to support 2FA on Twitter
Interactive Brokers
Loyal3	Tell them to support 2FA on Twitter
Manulife	Tell them to support 2FA on Twitter
Merrill Edge	Tell them to support 2FA on Twitter
MotifInvesting
Nutmeg	Tell them to support 2FA on Twitter
OptionsHouse	Tell them to support 2FA on Twitter
OptionsXpress	Tell them to support 2FA on Twitter
Personal Capital
Raizers	Tell them to support 2FA on Twitter
RBC Direct Investing	Tell them to support 2FA on Twitter
Robinhood
Scottrade	Tell them to support 2FA on Twitter
Sharebuilder	Tell them to support 2FA on Twitter
SigFig	Tell them to support 2FA on Twitter
TD Ameritrade	Tell them to support 2FA on Twitter
TD Waterhouse	Tell them to support 2FA on Twitter
TIAA-CREF	Tell them to support 2FA on Twitter
TradeKing	Tell them to support 2FA on Twitter
Vanguard
Wealthfront
WiseBanyan	Tell them to support 2FA on Twitter

Other	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
ActiveCollab	Tell them to support 2FA on Twitter
Adobe ID	Tell them to support 2FA on Twitter
Aerohive Networks	Tell them to support 2FA on Twitter
Airbnb	Tell them to support 2FA on Twitter
AngelList
Any.do	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Asana	Tell them to support 2FA on Twitter
Australia Post	Tell them to support 2FA on Twitter
Autodesk
Automater
Azendoo	Tell them to support 2FA on Twitter
Bugzilla@Mozilla
BuiltWith
CA Technologies	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Canada Revenue Agency	Tell them to support 2FA on Twitter
Cisco Meraki
Clio
Cloudinary
CommuterBenefits	Tell them to support 2FA on Twitter
Cosmolex
Crowd Supply	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
Delicious	Tell them to support 2FA on Twitter
Delighted
DirectAdmin
DoorDash	Tell them to support 2FA on Twitter
Dreamstime	Tell them to support 2FA on Twitter
Envato	Tell them to support 2FA on Twitter
Everlaw
Formstack
fruux	Tell them to support 2FA on Twitter
HMRC	Tell them to support 2FA on Twitter
IEEE	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
IFTTT
Kayako
Kickstarter
Mandrill
Mixpanel
Monster	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Nest	Tell them to support 2FA on Twitter
Office 365
Onshape
Pastebin	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
Patreon
PhraseApp
Pinboard	Tell them to support 2FA on Twitter
Planning Center Online	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Pocket	Tell them to support 2FA on Twitter
Pozible	Tell them to support 2FA on Twitter
Promoter.io	Tell them to support 2FA on Twitter
Repairshopr
Skatteverket
Solar.web	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
StartJOIN
Todoist	Tell them to support 2FA on Twitter
Toodledo
Total Connect Comfort	Tell them to support 2FA on Twitter
Trello
Upwork	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
US Internal Revenue Service	Tell them to support 2FA on Twitter
US Social Security Administration
Usabilla
WageWorks	Tell them to support 2FA on Twitter
Webmin
Wikia	Tell them to support 2FA on Twitter
Wikipedia	Tell them to support 2FA on Twitter
Wunderlist	Tell them to support 2FA on Twitter
Yclas
Zendesk

Payments	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Amazon Payments	Tell them to support 2FA on Twitter
Braintree
Buycraft
Dwolla
Flattr	Tell them to support 2FA on Twitter
GoCardless	Tell them to support 2FA on Twitter
Google Wallet
Klarna
Litle & Co	Tell them to support 2FA on Twitter
NETELLER
Payoneer	Tell them to support 2FA on Twitter
PayPal
Paysafecard	Tell them to support 2FA on Twitter
Privacy
Skrill
Square
Square Cash	Tell them to support 2FA on Twitter
Stripe
Venmo
Visa Checkout	Tell them to support 2FA on Twitter
Yandex.Money

Retail	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Adafruit	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
AdoramaPix	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Amazon
Apple
Big W	Tell them to support 2FA on Facebook
Combatant Gentlemen	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Comixology	Tell them to support 2FA on Twitter
Costco	Tell them to support 2FA on Facebook
Dell	Tell them to support 2FA on Twitter
Digital World International	Tell them to support 2FA on Facebook
EB Games Australia	Tell them to support 2FA on Twitter
eBay
Etsy
Everlane	Tell them to support 2FA on Twitter
FastTech	Tell them to support 2FA on Facebook
Flipkart	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Gilt	Tell them to support 2FA on Twitter
Groupon	Tell them to support 2FA on Twitter
Home Depot	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Hudson's Bay	Tell them to support 2FA on Twitter
Hypop	Tell them to support 2FA on Twitter
IKEA	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
JB Hi-Fi	Tell them to support 2FA on Twitter
Jet	Tell them to support 2FA on Twitter
Kohl's	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Lazada	Tell them to support 2FA on Twitter
Lowes	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Macy's	Tell them to support 2FA on Twitter
Massdrop	Tell them to support 2FA on Twitter
Mercado Libre
Newegg	Tell them to support 2FA on Twitter
Nordstrom	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Northern Tool + Equipment	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Overstock	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
PC Case Gear	Tell them to support 2FA on Twitter
Rakuten	Tell them to support 2FA on Twitter
Samsung	Tell them to support 2FA on Twitter
Sierra Trading Post	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Stack Social	Tell them to support 2FA on Twitter
Target	Tell them to support 2FA on Twitter
Walgreens	Tell them to support 2FA on Twitter
Walmart	Tell them to support 2FA on Twitter
Warby Parker	Tell them to support 2FA on Twitter
Wayfair	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Zappos	Tell them to support 2FA on Twitter
Zazzle	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook

Security	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Air VPN	Tell them to support 2FA on Twitter
Blur
BolehVPN	Tell them to support 2FA on Twitter
CAcert
Cobalt
CyberGhost	Tell them to support 2FA on Twitter
DigiCert
Dome9 Security
Entrust
FoxVPN
GeoTrust
GoGetSSL	Tell them to support 2FA on Twitter
Imperva Incapsula
Norton
OpenDNS
SSLTrust
ThreatConnect
ThreatMetrix	Tell them to support 2FA on Twitter
ThreatSim
Tinfoil Security
TorGuard
TunnelBear	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
VPN Unlimited	Tell them to support 2FA on Twitter
Webroot	Tell them to support 2FA on Twitter

Social	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
about.me	Tell them to support 2FA on Twitter
App.net
Badoo	Tell them to support 2FA on Twitter
Bitly
Buffer
DeviantArt	Tell them to support 2FA on Twitter
Facebook
Flipboard	Tell them to support 2FA on Twitter
Foursquare	Tell them to support 2FA on Twitter
Goodreads	Tell them to support 2FA on Twitter
Google+
HootSuite
ICQ	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Imgur	Tell them to support 2FA on Twitter
Instagram	Tell them to support 2FA on Twitter
LinkedIn
LiveJournal	Tell them to support 2FA on Twitter
Medium
Meetup	Tell them to support 2FA on Twitter
Newgrounds	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook Tell them to support 2FA via Email
Nextdoor	Tell them to support 2FA on Twitter
Pinterest	Tell them to support 2FA on Twitter
Quora	Tell them to support 2FA on Twitter
Reddit	Tell them to support 2FA on Twitter
Snapchat
Stack Exchange	Tell them to support 2FA on Twitter
Tumblr
Twitter
VanillaForums.com	Tell them to support 2FA on Twitter
Viadeo	Tell them to support 2FA on Twitter
VK
Weibo
WordPress.com
XING	Tell them to support 2FA on Twitter
Zocle

Transport	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
Air Canada	Tell them to support 2FA on Twitter
Air France	Tell them to support 2FA on Twitter
Alaska Airlines	Tell them to support 2FA on Twitter
American Airlines	Tell them to support 2FA on Twitter
Amtrak	Tell them to support 2FA on Twitter
British Airways	Tell them to support 2FA on Twitter
Captain Train	Tell them to support 2FA on Twitter
Clipper	Tell them to support 2FA on Twitter
Delta	Tell them to support 2FA on Twitter
Deutsche Bahn (DB)	Tell them to support 2FA on Twitter
easyJet	Tell them to support 2FA on Twitter
Frontier	Tell them to support 2FA on Twitter
Greyhound	Tell them to support 2FA on Twitter
Hailo	Tell them to support 2FA on Twitter
Hawaiian Airlines	Tell them to support 2FA on Twitter
JetBlue	Tell them to support 2FA on Twitter
JetSmarter	Tell them to support 2FA on Twitter
Lufthansa	Tell them to support 2FA on Twitter
Lyft	Tell them to support 2FA on Twitter
Norwegian	Tell them to support 2FA on Twitter
NSB	Tell them to support 2FA on Twitter
OV-chipkaart	Tell them to support 2FA on Twitter
Ryanair	Tell them to support 2FA on Twitter
SAS	Tell them to support 2FA on Twitter
SJ	Tell them to support 2FA on Twitter
SL	Tell them to support 2FA on Twitter
SmarTrip	Tell them to support 2FA on Twitter
Southwest	Tell them to support 2FA on Twitter
Spirit	Tell them to support 2FA on Twitter
Transport for London	Tell them to support 2FA on Twitter
Uber	Tell them to support 2FA on Twitter
United	Tell them to support 2FA on Twitter
WestJet	Tell them to support 2FA on Twitter

Utilities	Docs	SMS	Phone Call	Email	Hardware Token	Software Token
American Electric Power	Tell them to support 2FA on Twitter
AT&T	Tell them to support 2FA on Twitter
CallCentric
CenturyLink	Tell them to support 2FA on Twitter
Charter Communications	Tell them to support 2FA on Twitter
Comcast	Tell them to support 2FA on Twitter
Con Edison	Tell them to support 2FA on Twitter
Cox	Tell them to support 2FA on Twitter
DIRECTV	Tell them to support 2FA on Twitter
DISH Network	Tell them to support 2FA on Twitter
Dominion	Tell them to support 2FA on Twitter
DTE Energy	Tell them to support 2FA on Twitter
Duke Energy	Tell them to support 2FA on Twitter
EE	Tell them to support 2FA on Twitter
Eversource	Tell them to support 2FA on Twitter
Florida Power and Light	Tell them to support 2FA on Twitter
Frontier	Tell them to support 2FA on Twitter
Georgia Power	Tell them to support 2FA on Twitter
Google Fiber
Halebop	Tell them to support 2FA on Twitter
Optus	Tell them to support 2FA on Twitter
Pacific Gas and Electric Company PG&E	Tell them to support 2FA on Twitter
PowerStream	Tell them to support 2FA on Twitter
Project Fi
RCN	Tell them to support 2FA on Twitter
Rochester Gas & Electric	Tell them to support 2FA on Twitter Tell them to support 2FA on Facebook
Rogers	Tell them to support 2FA on Twitter
San Diego Gas & Electric	Tell them to support 2FA on Twitter
Sonic
Southern California Edison	Tell them to support 2FA on Twitter
Sprint	Tell them to support 2FA on Twitter
T-Mobile	Tell them to support 2FA on Twitter
Telstra	Tell them to support 2FA on Twitter
Three UK	Tell them to support 2FA on Twitter
Time Warner Cable	Tell them to support 2FA on Twitter
Ting
Verizon	Tell them to support 2FA on Twitter
Verizon Wireless	Tell them to support 2FA on Twitter
Vimla	Tell them to support 2FA on Twitter
Virgin Mobile	Tell them to support 2FA on Twitter
Vodafone (UK)
VoIP.ms	Tell them to support 2FA on Twitter

Two Factor Auth (2FA)

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