Device code phishing targets 340+ Microsoft 365 orgs since Feb 2026 via OAuth abuse, enabling persistent token hijacking and ...

A global phishing campaign targeting Microsoft 365 bypasses security codes using a legitimate login feature, impacting ...

Do you receive login security codes for your online accounts via text message? These are the six- or seven-digit numbers sent via SMS that you need to enter along with your password when trying to ...

Two-factor authentication adds a barrier between whoever's logging in and the account by requiring authentication in two ways, such as a computer and phone. This ...

Security experts advise against using SMS messages for two-factor authentication codes due to their vulnerability to interception or compromise. Recently, a security researcher discovered an unsecured ...

One-time SMS codes are widely used as the second checkpoint in two-factor authentication (2FA) to sign into everything from banking apps to email accounts. As I've written before, though, SMS is one ...

I have long encouraged the use of two-factor authentication (2FA) or two-step verification (2SV) with online accounts whenever possible (for more about the difference, see “Two-Factor Authentication, ...

Update, Mar. 1, 2025: This story, originally published Feb. 28, now includes details of a new PayPal “no code checkout” scam. Hot on the heels of Google confirming that it is replacing the use of SMS ...

In “Two-Factor Authentication, Two-Step Verification, and 1Password” (10 July 2023), I explained that for true two-factor authentication, you needed to acquire your time-based one-time password (TOTP) ...

The flaw in a legacy Telnet implementation enables pre-auth remote code execution, exposing affected systems to full ...

Discover 7 enterprise infrastructure tools that reduce engineering workload, speed deployment, and eliminate months of manual ...

A security flaw at the U.K.’s business registry, Companies House, exposed the personal information of business executives and ...