O2

There are often concerns how our personal data is protected as we rely on the internet and our cell phones more than ever. There are often security breaches with hackers gaining access to various websites, and now Twitter erupts as O2 is accused of sharing user’s phone numbers.

O2 customers reacted furiously this morning after it emerged that when they visit a website via their smartphone, the carrier sends the site their phone number. This serious security flaw means that any malicious website can get hold of your number and use it with a phishing attack or other scam.