2FA / MFA implementation
We implement two-factor/multi-factor authentication (2FA/MFA): login confirmation by a second factor — an authenticator app (TOTP), passkey, less often SMS — plus backup codes and a well-thought recovery process. So a stolen password is not enough to access the account. Honestly upfront: 2FA sharply increases account protection, but it is not 'absolute invulnerability' — some factors (especially SMS) are vulnerable, and sophisticated phishing can intercept even one-time codes.
2FA / MFA implementation — overview
2FA/MFA implementation is a project: we add a second factor for login (and sensitive actions) — TOTP (Google Authenticator and analogs), WebAuthn/passkey where possible (the most robust option), SMS/email as a fallback if needed, set up backup codes, trusted devices, the access-recovery process and an application policy (for admins/all/by risk). Honestly about the effect and limits, this is key: 2FA is one of the most effective measures: even knowing the password, an attacker without the second factor cannot log in, which sharply reduces the risk of account compromise; but it is NOT absolute protection — the SMS factor is vulnerable to interception/SIM-swap (so we prefer TOTP/passkey), and targeted phishing (a real-time fake page) can intercept even a one-time code; a passkey is more phishing-resistant. Honestly about recovery, important: poorly thought-out recovery negates 2FA (or, conversely, locks out the legitimate) — backup codes and the recovery process are critical, we work them out carefully. Honestly about UX: 2FA adds a step at login — a balance of security and convenience (trusted devices, prompt frequency). Honestly about the boundary: this is authentication, not all of account security (passwords, sessions, bot protection — adjacent measures). Honestly about access: access to the code/authentication system is needed. If you have no accounts/login, the service is not needed. Picture this: instead of 'a password leaked — the account is hijacked' login requires a second factor, and stealing the password is no longer enough. The base price starts from 18,000 ₽ per project; it depends on the factors and system.
Problems we solve
- Password leaks/guessing lead to account hijacking.
- There is no second factor at login and sensitive actions.
- Only SMS confirmation (vulnerable to SIM-swap).
- There are no backup codes and clear recovery.
What's included in the 2FA / MFA implementation service
- Implementing a second factor (TOTP/WebAuthn-passkey, SMS if needed)
- Backup codes and trusted devices
- A well-thought access-recovery process
- An application policy (admins/all/by risk)
- Server-side factor verification
- A balance of security and login convenience
- Indicating limits (SMS risks, OTP phishing)
- Handover and review with you
What you get
- A stolen password is not enough to log in
- Sharply reduced risk of account hijacking
- Robust factors (TOTP/passkey) instead of vulnerable SMS
- Well-thought recovery (no absolute protection)
How the work goes: steps
- We clarify the authentication system, factors, policy; collect access
- We implement 2FA, backup codes, recovery, trusted devices
- We test login/recovery scenarios, review with you
Why PDV Expert
- Fixed price and timeline — no surprises on the invoice.
- Report and recommendations in plain language — clear without a technical background.
- In touch at every step and answering questions about the result.
FAQ
Will 2FA make accounts invulnerable?
It sharply reduces risk (a stolen password is not enough), but does not make them invulnerable: the SMS factor is vulnerable to interception/SIM-swap (we prefer TOTP/passkey), and targeted phishing can intercept even a one-time code. A passkey is more phishing-resistant. It is a strong measure, not an absolute.
Which factor to choose?
Where possible WebAuthn/passkey (the most robust, phishing-resistant) or a TOTP app. SMS only as a fallback: convenient but vulnerable to SIM-swap. We pick for your audience and system.
What if a user loses the second factor?
That is why the recovery process and backup codes are critical — without them 2FA either locks out the legitimate or is bypassed via weak recovery. We work out recovery carefully, balancing security and availability.
About the provider
The «2FA / MFA implementation» service is provided by PDV Expert — a team specialising in «Site quality». We work under contract and deliver a written report with recommendations.