Cybersecurity

AppRiver observed more than 23 million emails delivering ransomware in only 24 hours, according to an Aug. 28 company blog post.

CVS Caremark, the pharmacy benefit manager of CVS Health, halted a set of mailings after discovering a potential exposure of patients' HIV statuses.

Oakland, Calif.-based Kaiser Permanente notified roughly 600 members from Riverside, Calif., and its surrounding areas after discovering an information security incident.

The U.S. Office of Management and Budget must strengthen federal efforts to reduce the use of Social Security numbers, according to a U.S. Government Accountability Office report.

Buffalo, N.Y.-based Kaleida Health began notifying affected patients about a phishing incident Aug. 25.

A U.K. National Health Service board in Scotland was infected with ransomware Aug. 25, Bleeping Computer reports.

New Lenox, Ill.-based Silver Cross Hospital on June 14 discovered a third-party website management vendor may have exposed patient information.

A spambot publicly dumped 711 million email addresses and a number of passwords, according to a blog post by security researcher Troy Hunt.

The Department of Homeland Security U.S. Computer Emergency Readiness Team warned users to exercise caution when contacted to donate to Hurricane Harvey relief efforts in an alert released Aug. 28.

Eight members of President Donald Trump's National Infrastructure Advisory Council have reportedly stepped down en masse, citing the Trump administration's lack of "moral infrastructure," according to a group resignation letter first reported by Nextgov.