Identity theft is frequently orchestrated by highly organised criminal gangs. They are smart, industrious, tech-savvy and deadly.
Having deceived you by what ever means to infect your computer with malware they will sit, wait and record your activities over a period of time as they gather your personal information.
Your personal data may then be used to open bank accounts, apply for credit cards or a loan, make online purchases or to obtain a driving license.
Although the UK has relatively strict laws surrounding cyber-enacted crime the perpetrators are often located overseas therefore outside UK jurisdictional frameworks and law making. This makes it hard for authorities to pursue, let alone resolve cases.