England fans will be going to support their team in Russia (Picture: PA).
Football fans heading to Russia for the World Cup should be wary of hotel and public wi-fi, cyber security chiefs have warned.
The National Cyber Security Centre (NCSC), a branch of Government listening post GCHQ, said fans should think carefully about how to secure their personal data.
The NCSC also alerted fans to keep their devices on them at all times.
Fears over the Russian government's cyber capabilities have heightened recently in the wake o the Salisbury nerve agent attack on a former Russian double spy and his daughter.
Director General of MI5 Andrew Parker says the Kremlin boasts "high levels of cyber attacks" and the risks to personal data have come to light following the Facebook and Cambridge Analytica scandal.
In a blog post, the NCSC recommended fans check with their mobile network provider whether their phone will work abroad and to only take what is necessary.
"It may be safer and cheaper to buy a pay-as-you-go phone."
The blog suggested antivirus software and apps on any device should be up-to-date and backed up before heading to the tournament.
All devices should be password protected, with two-step authentication enabled on import social media and email accounts, according to the blog.
The NCSC urged fans to avoid streaming or downloading content from unofficial sites.
They also advised against supporters using internet banking while abroad, as well as plugging in any USB sticks offered as gifts.
The blog also said: "Public and hotel Wi-Fi connections may not be safe; carefully consider what information you might be sharing when using these connections.
"Stay alert when using devices and don't share your phone, laptop or USBs with anyone.
"Keep your devices with you at all times if possible rather than leave them unattended. Hotel rooms, safes and lockers are not always secure because other people may have access codes or keys."
England are the only team from the UK at the finals - they will play their first match in Group G against Tunisia on 18 June before playing Belgium and Panama.
More guidance is offered on the Foreign Office's travel advice and Be On The Ball web pages.