Updates bug bounty rules and releases fixes for two zero-day vulnerabilities - but researcher says he's still banned
Valve banned Kravets from its security notification programme after he was forced to go public on a rejected security flaw
Gaping holes still exist in popular Steam app used by more than 90 million PC users every day, warn security researchers
The vulnerability was reported to Valve Software but was rejected for being 'out of scope'
Lack of support for 32-bit games in future versions of Ubuntu means many Steam games will no longer run
Digital download 'store wars' hots up as Microsoft tries to reinvigorate moribund Microsoft Store
Buyers can demand refunds if they've had a game for no more than 14 days and not registered more than two hours of play
Valve Software faces major challenge from Epic as the go-to platform for PC gaming
Valve quietly closes down hardware initiatives launched following Windows 8