Top United States counterintelligence official is advising Americans traveling to Russia for Fifa World Cup beginning on Thursday against traveling with electronic devices.
The measure is called for because they are likely to be hacked by criminals or the Russian government.
In a statement to William Evanina, the officials warned World Cup travelers that even if they think they are insignificant, hackers could still target them.
Evanina is an FBI agent and the director of the U.S. National Counterintelligence and Security Center.
“If you’re planning on taking a mobile phone, laptop, PDA, or other electronic device with you – make no mistake – any data on those devices may be accessed by the Russian government or cyber criminals,” he said.
“Such data especially your personally identifiable information are vulnerable.
“Corporate and government officials are most at risk, but don’t assume you’re too insignificant to be targeted,” Evanina added.
“If you can do without the device, don’t take it. If you must take one, take a different device from your usual one and remove the battery when not in use.”
Evanina’s warning comes as U.S. intelligence, law enforcement and congressional officials are still investigating Russian hacking in the 2016 presidential election .
The probe is on whether anyone with President Donald Trump’s campaign was aware of or aided it.
Trump has repeatedly denied there was any collusion and Russia has said it did not meddle in the U.S. election.