An interesting article from Naked-Security by Sophos
A researcher has stumbled on a publicly exposed database containing the telephone numbers of hundreds of millions of Facebook users.
According to TechCrunch, Sanyam Jain of research non-profit the GDI Foundation recently found the unprotected database containing 419 million user records on a web host.
He wasn’t able to identify who put it there, but the recently exposed records contained each user’s unique Facebook ID along with their mobile or mainline phone number.
After TechCrunch checked the records, some contained users’ name, gender and location. The countries which appeared most often in the data were the US with 133 million numbers, Vietnam with 50 million, and the UK with 18 million.