A ransomware attack is spreading worldwide, using alleged NSA exploit
A ransomware attack appears to be spreading around the world, leveraging a hacking tool that may have come from the U.S. National Security Agency. The ransomware, called Wanna Decryptor, struck hospitals at the U.K.’s National Health Service on Friday, taking down some of their network. Spain’s computer response team CCN-CERT has also warned of a…