4/7/2023 0 Comments Typestatus 2 smsGoogle says it recommends “prompts” instead of text message verification codes to “avoid phone number-based account hacking… get more info about sign-in attempts… block suspicious activity-if you didn’t try to sign into your account, tap ‘No’ on the notification to secure your account.” In July, the company made phone verification prompts “the primary 2-Step Verification (2SV) method,” shifting away from SMS messages or voice calls. “It’s a device we know is yours,” Apple says, “and can be used to verify your identity by displaying a verification code from Apple when you sign in on a different device or browser.” If you’re using Apple’s ecosystem, you already have the ideal alternative, where the default option is not SMS but one-time passcodes displayed on trusted devices that are already logged in. Feasible for enterprises-albeit with a cost, training, support and user acceptance overhead, but hardly feasible for private users. “The SMS protocol-over 30 years old now,” it says, “is susceptible to man-in-the-middle attacks, social engineering and SIM swapping.” Forrester suggests third-party password replacement, advanced analytics, single sign-on and physical keys. The entire attack could have been mitigated.”īut, where users are targeted, Forrester says, “SMS 2FA only stops 76%” of attacks. Microsoft says that 2FA would stop more than 99% of those attacks. “No SMS 2FA or authenticator app on Office 365,” Cyjax CISO Ian Thornton-Trump points out, “is how even a U.S. Microsoft has warned that a million-plus of its accounts are compromised monthly. “That’s a really, really, really high number,” the company’s head of identity security told a security industry event earlier this year. That said, you must enable two-factor authentication whenever it’s available. According to Forrester, “when entire workforces were forced to go remote, most of these companies started using two-factor authentication in the form of one-time passwords (OTP) over SMS.” But, while this is quick and easy, Forrester warns, “it is susceptible to compromise in certain cases.” This is a problem that’s now much worse with so many of us working from home. The attack was brutally simple, Check Point told me, an app pushed out to users via social engineering that asked for permission to read SMS messages. Last year, several German banks withdrew SMS as a 2FA option for just this reason.Ĭheck Point warned of an SMS 2FA attack just last month, “an Android backdoor that extracts two-factor authentication codes from SMS messages, records the phone’s voice surroundings and more.” The “ Rampant Kitten” operation, attributed to Iranian hackers, intercepted 2FA codes for otherwise secure Google and Telegram accounts. You need two-factor authentication. But where this uses SMS messaging, that’s also vulnerable to compromise-albeit such compromises remain comparatively and thankfully rare-but it is becoming more of an issue. We know that through data breaches, password reuse and reliance on common, easy to guess password combinations, usernames and passwords are wide open to attack.
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