If your device is hacked, or a thief has accessed it, you need to tell us as soon as possible by calling 0330 123 5985 if you're in the UK, or +44 (0)20 7597 2836 if you're abroad. Find out more about reporting fraud on our fraud webpage.
You should also de-link that device from your Investec Online profile as soon as possible. Log into your Investec Online profile from another linked device, go to 'Settings' and select 'Devices', then de-link your hacked device.