I don't know how widely "The Cyber Shield" is distributed. I believe we get it because some of our folks have security clearances (so if true, lots of people get it). Anyway, there is some info about our recent article in Government Computer News (GCN). I copied the info and provided a link to the bulletin below
See the article below about a young hacker who "accidentally" or so he says, generated a Telephony Denial of Service (TDoS) attack against 911 facilities in the Phoenix area
Check out the following articles on Telephony Denial of Service (TDoS) and how it could affect 911 systems.
Here is a video from last years DefCon on how to use a burner cell phone to generate a bunch of calls for a Telephony Denial of Service (TDoS) attack. This allows an attacker to create a virtually untraceable and highly anonymous attack. Even with a single phone, you can generate enough calls for a long enough period, to affect a small target, such as a hospital ER/ICU, small business, a small PSAP, etc.
A sheriff's office was affected by a Telephony Denial of Service (TDoS) attack and force them to voluntarily take their primary number out of service.
There have been a number of additional bulletins warning of Telephony Denial of Service (TDoS) attacks on 911 centers. Below is a summary of the bulletins I am aware of.
There has been a ton of press lately about Telephony Denial of Service (TDoS). There are real attacks occuring against 911 centers and financial contact centers.
Brian Krebs, a well know security expert, experienced a SWATing attack.