The emerging consensus over late December's rolling blackouts in Western Ukraine moves decisively toward the conclusion initially reached by ESET and iSight Partners that the affected oblast's grid sustained a cyber attack. The SANS Institute's influential Industrial Control Systems blog says, "We assess with high confidence based on company statements, media reports, and first-hand analysis that the incident was due to a coordinated intentional attack." Attackers apparently gained network access to control systems, turning them on and off at will. Other bits of malware and supporting attacks served as misdirection. Ukraine's government plans to release results of its investigation next week.
German intelligence services resume cooperation with US services after an interruption brought on by objections to US electronic surveillance of German and other friendly European targets.
A group of Germany-based jihadists begin publishing a cryptography magazine. While denying adherence to ISIS, the publishers nonetheless expect their work to useful to colleagues in cyber-jihad.
Counter-terror operations were the focus of Friday's White House outreach to Silicon Valley, with particular emphasis on denying ISIS a platform in social media. But the Daily Beast points out that the old-school, dead-tree ISIS magazine "Dabiq" enjoys wide influence, the message apparently trumping the medium.
Twitter finds itself in conflict with Turkey's government over Kurdish pro-independence.
UK opposition leader Jeremy Corbyn's Twitter account was briefly hijacked.
The Rovnix Trojan worries Japanese banks. Other countries go on alert against similar infestations.
Juniper Networks drops its backdoored encryption scheme. Microsoft's support for older IE versions ends tomorrow.