Can I share an OTP code?

From a security standpoint, sharing a One-Time Password (OTP) code is strongly discouraged and dangerous.

Major Risks of Sharing an OTP Code#

Identity Theft#

An OTP code is designed for single-use by one person only. Sharing it grants a third party access to your account or sensitive transactions, allowing them to impersonate you or carry out fraudulent activities in your name. Even if a cybercriminal obtains your password, they still need the OTP to access your account. By sharing the code, you remove this critical security barrier.

Phishing and SIM Swapping Attacks#

Hackers often use deceptive tactics to trick you into sharing your OTP (e.g., posing as customer service). Once they have the code, they can access your bank accounts, social media, or other sensitive services.

Personal Responsibility#

An OTP is personal and tied to your responsibility. Disclosing it can lead to legal or financial consequences, especially in professional or banking contexts.

Why OTPs Are Secure… As Long As They Stay Private#

Single-Use and Time-Limited#

An OTP is valid for only one session or a short period (often just a few minutes). This normally reduces the risk of fraudulent reuse—but only if the code is not shared.

Two-Factor Authentication (2FA)#

OTPs add an extra layer of security beyond passwords. Sharing them negates this protection.

What to Do If Someone Asks You to Share an OTP?#

Never Share It#

No legitimate service (bank, social network, government agency) will ask you to share an OTP via email, phone, or message. If this happens, it is almost certainly a fraud attempt.

Report Unsolicited OTPs#

If you receive an OTP without requesting one, monitor your accounts and report the incident to the relevant service.

Safer Alternatives#

• Use authentication apps (such as Brennus OTP, LastPass, Ente Auth, and others) instead of SMS-based OTPs, which are more vulnerable to interception.
• Enable other forms of Multi-Factor Authentication (MFA), such as fingerprint or facial recognition, to enhance security.