Slack fixes 'critical' vulnerability that left desktop app users open to attack

Slack and its scores of desktop app users just dodged a major bullet. 
The communications tool relied upon by journalists, tech workers, and D&D fans alike disclosed on Friday a "critical" vulnerability — now fixed — that would have let hackers run wild on users' computers. Slack's internal security team didn't even find the bug; rather, it was a third-party security researched who reported it, through the bug bounty platform HackerOne in January.
Notably, the exploit allowe