As someone who regularly uses a computer, it physically stung to write that headline.

This isn’t about the eternal PC vs. Apple debate. This is about one branch of the U.S. military using a computer operating system so outdated that it has been discontinued. Perhaps for civilians and individual servicemen this would be acceptable, but for the department that handles communications for the U.S. Navy? It’s disconcerting, to say the least.

The Navy’s Space and Naval Warfare Systems Command signed a $9.1 million contract for Microsoft to keep running Windows XP security patches for 100,000 computers. By the time the contact ends in 2017, it’s estimated to be worth $30.8 million.

The enormous hack of the Office of Personnel Management was caused by defunct computer networks that were never updated with proper security measures. Since Microsoft rendered Windows XP obsolete last year, the Navy has to partner with Microsoft in order to keep its system secure and avoid a cybersecurity disaster.

The Navy is in the process of upgrading its operating systems. With any luck, most computers will switch over by 2017.