What a cash-swipe!

A subway security guard hired to crack down on rampant fare evasion was caught on camera swiping in riders with a student OMNY card in exchange for cash.

A new report from MTA Inspector General Daniel Cort’s office showed the guard tapping straphangers through the gates of a Brooklyn station — using a stolen Department of Education OMNY card that was intended for student use.

The report showed the guard tapping subway riders through the gates of a Brooklyn station. MTA Inspector General

The IG’s report released Thursday did not identify the security guard, who was removed from the subways after a rider at the Eighth Avenue station in Brooklyn alerted authorities to the scam last year.

“The gate guards are paid to deter farebeating and provide a sense of security to the riding public, not to improperly sell subway system entry and pocket the cash,” MTA IG Daniel Cort said in a statement.

“I am grateful to the rider who reported this misconduct and appreciate NYC Transit’s thorough…