A small business, a Remax realtor, was hit with $600,000 of Dial Through Fraud (DTF). I included an article below:
The article does not give any details about the attack, but I bet the attacker exploited the victim's PBX and then generated a ton of inbound calls, which hair pinned out to premium numbers. I discussed this attack method in an April 12th post. Again, DTF/Toll Fraud is still a big issue - attackers set up premium numbers and then generate traffic to the numbers, through this hairpin attack. All enterprises are targets, but again, small businesses are especially attractive, because they don't have the expertise to secure their systems. They are also the least likely to notice the attack, until they get their phone bill...
I wish the victim well. The article says they are fighting the service provider, but that will be difficult. The calls do cost the service provider money - it is the enterprises job to secure their system.
Also, Ofcom, similar to the FCC in the United States, issued a warning that these types of attacks are on the rise: