The ransomware version found by the BKA uses a pop-up window that says the machine has been locked down due to "unauthorised network activity".

BBC: Ransomware page

Worse, we are locked (due to the winner-take-all nature of our elections) into a two-party system, so that removes a lot of nuance from the equation and leads to inefficiencies.

FORBES: Sergey Brin Takes To Google+ To Ask All of Today's Election Winners To Withdraw From Their Political Parties

Elsewhere in the town shoppers had to be locked into a Tesco supermarket due to the trouble.

BBC: Carrickfergus Town Hall

While nobody wants to see a family locked out of their house due to foreclosure, we run the risk of moral hazard if we continue to reward irresponsible behavior.

FORBES: Fanning The Flames Of Moral Hazard With Foreclosure Moratorium

For deaf people or those with significant hearing loss, these gloves offer hope against the locked-in feeling that the community can experience due to the low numbers of signers in the general population.

FORBES: Smart Gloves Turn Sign Language Gestures Into Vocalized Speech

But the Frenchman's back wheels locked up early on and he had to pull out due to mechanical failure.

NPR: Alonso Thrills Home Fans With Spanish GP Win

Hundreds of Oldham Athletic football fans were locked out of their team's away match at Bury due to safety fears because the ground was too full.

BBC: Bury v Oldham: Hundreds locked out of derby match

The US and Canadian league locked out the players in mid-September, a month before the season was due to begin.

BBC: NHL locks out ice hockey players until 14 December