Twitter takes down verified accounts after major hack (most service now restored). Russian influence operations. Cozy Bear’s biomedical intelligence collection. Spearphishing in Hong Kong.

Twitter sustained a major incident in which celebrity accounts were hijacked yesterday. It seems to have been a social engineering caper, but it’s motivation, nominally financial, remains unclear. British authorities call out Russia for an influence campaign mounted during last year’s elections. Cozy Bear is back, and sniffing for COVID-19 biomedical intelligence. Craig Williams from Cisco Talos on Dynamic Data Resolver, a plugin that makes reverse-engineering malware easier. Our guest is Ashlee Benge, formerly from ZeroFox, on emerging and persistent digital attack tactics facing the financial services industry. And Chinese intelligence services are spearphishing Hong Kong Catholics.