Overview

• Phison says more than 4,500 cumulative testing hours and over 2,200 cycles on purportedly affected drives produced no failures.
• Reports surfaced after Windows 11 updates KB5063878 and KB5062660, with anecdotes often describing issues during large sustained writes.
• No Phison partners or customers have confirmed drives affected by the alleged issue, according to the company.
• A fabricated document claiming to list impacted Phison controllers circulated online, which the company refuted as fake.
• Microsoft is still investigating and had asked users for incident details, as outlets note prudent cooling and other hardware factors could explain isolated failures.