If you receive a similar "Geek Squad" or "Best Buy" invoice, remember these tips:

He paused and scrutinized the details. First, the sender’s address wasn’t the standard First.Last@bestbuy.com . Instead, it was a string of random letters and numbers ending in a Gmail address. Then, he noticed the subtle errors:

Always look up the official company number yourself, like the Best Buy Support Line.

: It was slightly pixelated, as if it had been copied and pasted one too many times.

Arthur almost called the number provided in the email to "dispute" the charge. Had he done so, a friendly-sounding "agent" would have likely asked for his bank details or requested remote access to his computer to "process the refund"—only to wipe out his savings instead.