Richardson made clear that there is no evidence of a hacking at this point, but some cyber experts have raised to possiblity given the location of the warships. A top U.S. Navy admiral on Monday called for a swift and thorough investigation into Monday's collision of the USS John S. McCain into an oil tanker near Singapore-- marking the second deadly mishap that occurred in the Pacific in the past three months. Ten sailors remain missing and five were medically evacuated in the second collision in two months involving a U.S. Navy destroyer and a civilian tanker,. Seven sailors died in June when the USS Fitzgerald and a container ship collided in waters off Japan. Navy Admiral John Richardson later clarified in a Twitter post that the review would include the possibility of cyber intrusion or sabotage, although there were “no indications right now”. Itay Glick, the founder of a cyber security firm called Votiro, told News.com.au that his initial reaction to news of the USS McCain collision was that it may have been hacked. “I don’t believe in coincidence,” Mr Glick told news.com.au. “Both USS McCain and USS Fitzgerald were part of the 7th Fleet, there is a relationship between these two events and there may be a connection.” 
 
 Mr Glick worked in the cyber-warfare unit of the Israeli intelligence agency for seven years and he believes countries like Russia and China may have the capability to launch an attack on the warships. Assuming a hostile power wanted to spoof the American destroyer, the signal it would have to broadcast to cause an accident would be wide enough to affect dozens, if not hundreds of ships in the region and someone would have noticed it. “There might definitely be, because it’s not the first incidence.” 
 
 The USS McCain had been heading to Singapore on a routine port visit after conducting a sensitive freedom-of-navigation operation last week by sailing near one of China’s man-made islands in the South China Sea. Getty Roslan Rahman 
 
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 The Strait of Malacca waterway is one of the busiest waterways in the world, with 80,980 transits by ships of all kinds , military and civilian, in 2015. Admiral Richardson, the chief of naval operations, said the comprehensive review of the 7th Fleet would look at operational tempo and trends in personnel, matériel, maintenance and equipment. 2 clarify Re: possibility of cyber intrusion or sabotage, no indications right now...but review will consider all possibilities — Adm. John Richardson (@CNORichardson) August 21, 2017 
 
 Adm. Richardson wants to ensure there aren’t bigger problems in the fleet that may be masked by the high pace of operations and budget uncertainties, according to a Navy official. He has directed Admiral Phil Davidson, head of the Navy’s Fleet Forces, to lead the investigation.
– As the Navy tries to figure out what caused its latest collision, two of the most common theories involve human error or some kind of electrical glitch in the navigation system. But another idea has surfaced as well, and the Navy isn't ruling it out: hacking. "2 clarify Re: possibility of cyber intrusion or sabotage, no indications right now...but review will consider all possibilities," tweeted Adm. John Richardson, chief of naval operations, per Fox News. The idea is that some foreign power, perhaps China or Russia, interfered with the USS John S McCain's GPS navigation, and perhaps did the same before the deadly June collision involving the USS Fitzgerald. Here's a look at what experts are saying: 'Very unlikely': At Popular Mechanics, Kyle Mizokami tosses cold water on the idea that "GPS spoofing" is to blame. For one thing, broadcasting such an interference signal would likely have affected dozens of ships in the area, not just the USS McCain, and there's no indication of that. Plus, Navy ships don't rely solely on GPS: Human spotters should have seen the hazard. It's fishy: "There’s something more than just human error going on," a former information warfare specialist for the Navy tells McClatchy, referring to the string of Navy accidents. The story notes that on June 22, hackers appear to have manipulated the GPS signals of 20 ships in the Black Sea, the first such instance of GPS misdirection, or spoofing. The ships' GPSes actually told them they were on land, and the best guess is that the interference came from Russia. It's fishy, take II: "I don’t believe in coincidence," a former member of Israel's cyber-warfare unit tells news.com.au. In addition to interfering with GPS signals, hackers also could have planted malware in the ships' computer network, he says. "China has capabilities, maybe they are trying things, it is possible." The USS McCain had been returning from a patrol in the South China Sea, where it sailed by one of China's contested man-made islands, when the collision occurred. Remains of some of the 10 missing sailors from the USS McCain have been found on the ship itself.