Thousands of smartphone apps are running ads from rogue advertising networks that change smartphone settings and take contact information without your permission, according to a new study released Monday.
Aggressive ad networks can disguise ads as text message notifications or app icons, and sometimes change browser settings and bookmarks. Often, the ads will upload your contacts list to the ad network's servers -and then sell this information.
Sounds terrible? It's not a great problem yet, but it's a growing one. As many as 5% of free mobile apps use an „aggressive“ ad network to make money, according to Lookout, a San Francisco-based mobile security company.
So, be careful, as Mobile ads can hijack your phone and steal your contacts.