It's not just the National Security Agency that's using hackers to do some scary snooping this time. The U.K.'s Government Communications Headquarters and the NSA worked together to hack Gemalto, a Dutch SIM card manufacturer.
The story originally came from The Intercept, a site that publishes NSA documents originally leaked by Edward Snowden.
The Intercept reports that the pair targeted key staff members in the firm, whose clients include AT&T, Verizon, T-Mobile and Sprint, in an attempt to figure out their passwords.
The NSA and GCHQ's target was SIM card encryption keys.