A hand showing an ace and a king, a winning blackjack hand, above stacks of casino chips. Photo: Images Money, CC BY 2.0, via Wikimedia Commons.
Readers of the old Jailbreak How often asked why their favourite apps stopped working after a jailbreak. Banking apps were the usual suspects. Today the strictest of all are licensed betting and online casino apps. Here is why, explained without any workarounds, because there are none worth recommending.
The regulator's view
A licensed operator has to prove several things to its regulator: that each bet comes from a permitted location, that the player is who they claim to be, that games and odds have not been tampered with and that customer money is protected. A jailbroken phone undermines all of these. It can run code inside the app, fake GPS data, hide other software and read or alter what the app shows.
What the apps look for
Detection methods vary and change often, and we will not describe how to defeat them. In general terms, apps and their security partners check for:
- signs that the system has been modified or that unexpected code is running inside the app;
- package managers, tweak frameworks and other jailbreak traces;
- location-spoofing tools, VPNs, remote-access and screen-sharing software;
- debuggers and developer tools attached to the app.
If something looks wrong, the app may refuse to start, block bets, ask for verification or flag the account for review.
Why trying to hide a jailbreak is a bad idea
- Terms and conditions usually forbid it, and operators can void winnings or close accounts.
- Hiding tools come from the same unreviewed sources that have spread malware before.
- A phone that holds your betting balance and bank details is exactly the device you want to be most secure.
What to do instead
Keep one stock, updated iPhone for money: banking, payments and any betting or casino account. If you enjoy tinkering, use an old spare device for that and never sign in to financial accounts on it. To return a modified phone to normal, restore it with a computer, as described in our piece on restoring jailbroken devices.
The irony is that jailbreakers and casino operators agree on one thing: whoever controls the device controls what happens on it. Operators simply want that to be the operating system, not the user.