Some think that two U.S. Navy ships that recently crashed might have been hacked.
Two different cyber-security experts told Fox News they think there’s more going on here than just human error.
And one says it would be a pretty big coincidence that both incidents happened in waters where tensions often run high with China.
One Navy official told Fox News there was no cyber-sabotage.
But Admiral John Richardson tweeted they're considering all possibilities, although he says there no evidence of hacking so far.