MFA

wikipedia:Multi-factor authentication (MFA) is a method of computer access control which a user can pass by successfully presenting several separate authentication stages through credentials based on knowledge (something you know), possession (something you have), and inherence (something you are), in other words, it is a system that requires more than one method of authentication from a self-reliant listing of credentials to verify a user's identity for login.

Examples

• Bank card + PIN number
• One-time password (OTP) tokens
• Certificates
• Smart cards

2FA Mobile applications

Different 2FA open-source mobile app are available such us :

• FreeOTP (2013, Android, iOS): free and open-source

Android: Download from Google Play[1] or F-Droid[2] iOS: Download from the App Store[3]

• AndOTP (Android): free and open-source

Android: Download from Google Play[5] or F-Droid[6]

• Google Authenticator (2010, Android, iOS): free, was open-source until 2013
• Microsoft Authenticator (2016)
• MobileID, deepnet security
• authy
• Cisco Duo Mobile
• LinOTP

Activities

• Read https://www.digitalocean.com/community/tutorials/how-to-set-up-multi-factor-authentication-for-ssh-on-ubuntu-16-04 (OATH-TOTP)

See also

• wikipedia:Help:Two-factor_authentication
• VPN: IPsec (Openswan), OpenVPN, Forticlient, GlobalProtect (PAN-OS), WireGuard (Linux Kernel), Tailscale, PulseSecure, WebVPN, SoftEther
• MFA: FreeOTP, Google Authenticator, Microsoft Authenticator, Strong customer authentication, Dualshield, HOTP, TOTP, Authy, Push authentication
• Security: Security standards, Hardening, CVE, CWE, Wireless Network Hacking, vulnerability scanner, Security risk assessment, SCA, Application Security Testing, OWASP, Data leak, NIST, SANS, MITRE, Security policy, Access Control attacks, password policy, password cracking, Password manager, MFA, OTP, UTF, Firewall, DoS, Software bugs, MITM, Certified Ethical Hacker (CEH) Contents, Security+ Malware, FIPS, DLP

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