Data breaches are getting so common that it can be hard to know how to react when it happens to you. It's often easy to shrug it off, but there's a risk.
Being a victim of a data breach increases your chances of being targeted by criminals and scammers.
Sue Shore told the BBC how scammers went after her. We found her details had been leaked online.
Sue was a victim of what's known as a Sim swap attack - where scammers trick a network operator into thinking they're the account holder to get a new Sim card for a mobile device.
They used it to take over almost all her online accounts through her phone. She said the experience was "horrible".
