Protector, a new app that debuted in the Apple Store earlier this week, lets users hire on-demand personal security.

Protector, a new on-demand security app launching in New York City and Los Angeles, lets users hire elite bodyguards with just a tap—for a hefty price.

An app called Protector, which is available in Los Angeles and New York, lets users hire an armed bodyguard with the click of a button.

A data breach of the Tea app recently exposed users' selfies, IDs, and private messages. Cybersecurity experts say it demonstrates broader issues.

Serious national security concerns have been brought to the forefront this week — and they’re linked to a secure messaging app called Signal. White House staffers have come under fire after ...