Millions of people imperiled through sign-in links sent by SMS



Friday, January 23, 2026-Cybersecurity experts are warning that millions of people are at risk due to the widespread use of sign-in links sent via SMS, a practice that has become increasingly common for online accounts and financial services. 

Unlike traditional password logins, these one-time links can be intercepted by hackers through SIM-swapping attacks or phishing schemes, putting sensitive personal and financial information in jeopardy. Security specialists are urging users to rethink convenience at the cost of safety.

Recent reports indicate a sharp rise in attacks targeting SMS-based authentication, with scammers exploiting the simplicity of clicking a link over entering a password. Mobile carriers and tech companies are under pressure to implement stronger verification methods, such as app-based authentication or hardware security keys, which experts say dramatically reduce risk. Individuals relying solely on SMS links are particularly vulnerable, as these links often bypass additional security checks that could prevent unauthorized access.

The urgency is heightened by the growing number of services adopting SMS logins, from banking apps to social media platforms. For consumers and organizations alike, the message is clear: prioritizing convenience without robust safeguards can have costly consequences. 

Experts recommend switching to multi-factor authentication methods that do not rely on SMS, regularly monitoring account activity, and staying vigilant against unexpected messages to protect personal data in an increasingly digital world.

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