How good is your safe? Maybe not as good as you think.

"Anything you buy in Home Depot, or any safe in Walmart, Costco, Staples, Canadian Tire -- it's all crap," Terry Whin-Yates (a.k.a. Mr. Locksmith) of Vancouver, Canada, said in a video posted online last week. "We can open them in less than 10 seconds."

Last year, security expert Jim Stickley showed how to open a hotel safe in less than two minutes. But with the magnet trick, it takes Whin-Yates about two seconds to access a popular type of safe he bought at Staples for $250:

"Different types of magnets will open up most hotel rooms, most inexpensive safes and most apartment buildings," Whin-Yates said in the clip. "There's very little security."

Whin-Yates said he's been threatened with multi-million dollar lawsuits over his safe-cracking demonstrations.

"We have lawsuit parties now if someone's going to threaten me," he said in the clip. "It's kind of fun -- especially if you're right."

Also on HuffPost: