A ransomware attack last fall on a company that provides billing and other business services to health plans and hospitals resulted in a breach affecting more than 600,000 individuals, according to Michigan state officials. But what makes breach determination in ransomware attacks so difficult?
Officials in Jackson County, Georgia, along with the FBI are investigating a ransomware attack that crippled IT systems over a two-week period and reportedly led local officials to pay a bitcoin ransom worth $400,000 to restore systems and infrastructure.
The network is much more than just the sum of its endpoints, and the imperative to secure everything has led to detection and response emerging as a top priority for many organizations, says Chris Morales of Vectra Networks.
Every threat hunt starts with intelligence. As one of the industry's most comprehensive knowledge bases for adversary behavior, ATT&CK provides a structure for hunters to build their hypotheses and search for threats.
Australia has faced a few tough weeks on the cybersecurity front. Toyota Australia's computer systems were still down Friday after an attempted cyberattack. A healthcare group acknowledged it was the victim of a ransomware attack. And last week, suspected nation-state attackers hit Parliament's email systems.
The latest edition of the ISMG Security Report describes vulnerabilities found in popular password generator apps. Plus, the evolution of blockchain as a utility and a new decryptor for GandCrab ransomware.
A rush by some media outlets to attribute a late-2018 alleged Ryuk ransomware infection at Tribune Publishing to North Korean attackers appears to have been erroneous, as many security experts warned at the time. Rather, cybercrime gangs appear to be using Ryuk, according to researchers at McAfee and Coveware.
Good news for many victims of GandCrab: There's a new, free decryptor available from the No More Ransom portal that will unlock systems that have been crypto-locked by the latest version of the notorious, widespread ransomware. But the ransomware gang appears to already be prepping a new version.
The good news for security leaders: Because of SSL/TLS, nearly every bit of web data in transit is now encrypted. The bad news: Threat actors are now masking their attacks inside of encrypted traffic. Kevin Stewart of F5 Networks explains why network visibility is not enough to detect these attacks.