New Study Warns of Security Threats Linked to Recycled Phone Numbers

A new academic study has highlighted a number of privacy and security pitfalls associated with recycling mobile phone numbers that could be abused to stage a variety of exploits, including account takeovers, conduct phishing and spam attacks, and even prevent victims from signing up for online...

Threat Source newsletter (Sept. 26)

Newsletter compiled by Jon Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. An attacker known as “Tortoiseshell” is using a phony, malicious website to deliver malware. The site specifically targets U.S. military...

Attackers Target Yahoo Mail Accounts in 'Coordinated Effort' to Own Users

After years of focusing their attention on Gmail, it seems that attackers have finally gotten around to expending some effort hacking Yahoo mail accounts. Yahoo officials said Thursday that they have reset the passwords on an unspecified number of mail accounts after detecting what they call a...

Google Says Gmail Security Measures Have Reduced Account Hijacks By 99 Percent

Gmail accounts are high-priority targets for attackers of all stripes, particularly spam crews and state-sponsored attackers who use them to monitor the activities of activists and journalists. Hijacking those accounts can be quite useful for spammers and malware gangs as well, but Google said th...

Twitter Resolves SMS Bug (For Some Users)

UPDATE–A day after an independant security researcher disclosed a vulnerability in SMS-enabled Twitter accounts, the social network giant announced it’s fixed the flaw – at least for some users. Those who use a “long code” and/or cannot use a PIN code remain at risk. The update came Tuesday eveni...