I was logging into DCS for a mission today and three of us all running DCS through Steam received the message
"Important files are damaged: Please, repair.
Check dcs.log for details (log below)."
Woth the game failing to launch. All of us had previously run the game within the past 2 days with no issues. We verified file integrity with no affect and one of us reverted and still was unable to open. One also turned off antivirus with no affect.
DCS log files for all three state,
"ALERT SECURITYCONTROL: Can't run Steam!"
As best we can tell this is an issue introduced with the newest steam update. I've done the normal googling and nothing seems to be popping up. If anyone is encountering this or has a fix guidance would be appreciated/ED this may be a bigger problem if three people are having the same issue with nothing in common other than steam version.