Anonymous seems to have scored against some Islamic State social media accounts as it launches its "OpISIS."

Intuit's popular TurboTax software suspended filing state income tax returns in the US late last week after users attempting to file in Minnesota found that some unknown party had already submitted returns under their identities. Intuit suspended e-filing of state returns after receiving Minnesota's notification of the apparent fraud. Federal tax filings were unaffected, and TurboTax resumed state filing services late Friday evening. Intuit (which has retained Palantir to help deal with the incident) says its own systems had not been breached, but that users were victims of fraud traceable to other large company's data breaches. (Coincidentally or not, Intuit also announced last week that it had acquired cloud security shop Porticor.)

December's Anthem breach, disclosed last week, is a big data breach of the kind that could enable identity fraud. Company and FBI investigations are proceeding, and sources claiming knowledge of the incident say signs point to Chinese government involvement (which the Chinese government naturally denies). Lessons being drawn from the Anthem hack suggest that encryption wouldn't have prevented an attack based on targeted theft of privileged credentials, and that the C-suite seems to have taken a more active role in incident response.

The first lawsuits related to the Anthem breach have been filed, and more companies are looking to cyber insurance.

Apple pushes out an OS X update to close Flash vulnerabilities.

German, UK, and US authorities update their cyber policies.