Security expert Sean Sullivan isn't surprised that the massive 2014 breach of Yahoo, which exposed at least 500 million account details, only recently came to light. Here's why, as well as what users must learn from this breach.
Don't leap to conclusions on the basis of a new report that suggests Yahoo is preparing to warn the world that it was hacked and lost hundreds of millions of users' account credentials. Someone may simply have harvested passwords reused on other sites.
FBI Director James Comey, Facebook CEO Mark Zuckerberg and security expert Mikko Hypponen all advocate covering up your webcam as a cheap and no-brainer defense against everything from unscrupulous competitors to sextortionists.
Cisco has patched another zero-day flaw stemming from the Shadow Brokers' leak of Equation Group tools and attack code. The technology giant warns that attackers have been exploiting the vulnerability.
To help financial institutions better spot attempted fraud, the SWIFT interbank messaging network plans to begin offering voluntary "daily validation reports" to customers to flag unexpected senders, recipients or payments as well as unusually large payments.
Ransomware attacks are surging because attackers have perfected their techniques while enterprises in all sectors have failed to address critical security shortcomings, says Raimund Genes, CTO at Trend Micro.
A developer warns that Dropbox gains wide-ranging access to Apple's OS X operating system using a SQL trick that some equate to hacking users' systems. Here's why giving a desktop app unusual access to Apple's privacy settings poses a security risk.
The National Institute of Standards and Technology has issued a draft of a self-assessment tool that's designed to help enterprises gauge the impact and effectiveness of their cybersecurity risk management initiatives.
The handling of a recent data breach - the details of which are still unfolding - by Oakland, Calif.-based web services company Regpack provides a look into how the discovery and disclosure of a breach can turn into a real train wreck.
All in the family: A "sophisticated attacker" alert from US-CERT, urging enterprises to lock down their networking gear, was triggered by the leak of exploit tools - targeting, in part, U.S.-built networking gear - that may have been tied to the NSA.
The massive Sony breach spelled out the risks facing any business that deals in digital content. Here's how David Hahn, CISO of publishing giant Hearst, keeps the cybersecurity conversation going with his board of directors.