Twenty thousand phones on the same networks: the exact name of the official Wi-Fi should be verified before connecting.
A Grand Prix or endurance race weekend means three days of successive connections. The camping Wi-Fi on Thursday evening, the circuit’s Wi-Fi during free practice, the hotel’s network, and the airport’s network on the way back. At each stage, tens of thousands of phones on the same saturated networks to check lap times, post photos, and open the ticketing app.
None of this is inherently dangerous. But the way we connect deserves two minutes of thought before using the first network.
The circuit, a case study
A circuit on race day concentrates everything that makes a public network tricky. A massive crowd, a mobile network overwhelmed by the load, leading to a mad dash for the first available Wi-Fi. Several networks with similar names: the organizer’s, the grandstands’, the commercial village’s, and sometimes one or two that belong to no one official.
Creating a network named “Circuit_WiFi_Free” requires no special skills. A phone that connects to it because the name seems familiar routes all of its traffic through equipment controlled by someone else.
The reflex: check the exact name of the official network on signs, the program, or the event app, and disable automatic connection to avoid joining a network based solely on its name.
What is transmitted that weekend
More than usual. The ticketing app with your access, contactless payment charged to the event account, the hotel’s app, parking reservation, sometimes the airline’s app for the return.
On a network shared with twenty thousand strangers, the rule is simple: no sensitive information without an encrypted connection. Checking standings, sure. Opening your bank to check a debit, no, or only in 4G.
Encrypting the connection for the whole weekend
Instead of sorting every moment what you can or cannot do depending on the current network, a more relaxing approach: encrypt the connection once and for all.
A VPN establishes an encrypted tunnel between the phone and a remote server. The manager of the camping, circuit, or hotel network sees encrypted data passing through, without knowing which sites you are visiting. And if you accidentally connect to the wrong network, what is transmitted remains unreadable to the one who set it up.
This is protection for the connection, not for everything. It does not prevent entering your password on a fake ticketing page received via SMS. The two precautions complement each other.
Traveling abroad
For races outside France, an additional precaution: digital usage conditions vary by country, and the Ministry of Foreign Affairs publishes fact sheets by destination that include these aspects. A quick look before departure avoids surprises.
Also check that the two-factor authentication of your important accounts does not rely solely on an SMS to a French number: abroad, in case of poor reception, you could find yourself locked out of your own ticketing account on the morning of the race.
The short list
- Exact name of the official network verified before connection
- Automatic connection to Wi-Fi networks disabled
- Banking and payments on 4G, not on the circuit’s Wi-Fi
- Encrypted connection activated from Thursday to Sunday
- Emergency codes for two-factor authentication printed and stored with the tickets
- Phone and apps updated before leaving
The takeaway
No one goes to a Grand Prix to think about the security of their phone. That’s precisely why these settings are done the night before, once, and then you don’t think about it again until the chequered flag.
