Academics have raised questions over core technology behind Microsoft’s Majorana 2 quantum chip. University of St Andrews physicist Henry Legg said Microsoft has not proven the existence of topological qubits, arguing that tuning procedures, code errors and missing data undermine the company’s claims. Microsoft rejected the criticism, saying it stands by its results and roadmap and that its work has undergone independent verification through a DARPA benchmarking initiative.

Bluesky removed 8,526 state-involved influence-manipulation accounts over the past year, it said. It implemented the measures over the year since May 2025 and deleted 4,907 accounts since January 2026 alone. Bluesky said its removal pace in 2026 was about twice that of 2025, often deleting accounts within hours of their first post and limiting average views to about 50 before takedown. Many operations relied on hijacked existing accounts, including dormant ones. Bluesky urged strong unique passwords, password managers and two-factor authentication.