As more unsecured devices become IP-enabled for remote management or as part of sensor networks, the possibilities for attack grow.
As denial of service attacks become more frequent and powerful, agencies need to take steps to prepare, from new arrangements with ISPs to establishing low-bandwidth alternate communications.
Servers being bombarded by requests is a nuisance, but when attacks come in conjunction with an emergency, they can lead to trouble.
Attacks from botnets are increasing in bandwidth and, significantly, packet rates, a Prolexic report says.
DHS has warned about recent denial of service attacks against PSAPs and other government phone lines, but the attacks are nothing new.
Government offices, including Public Safety Answering Points, are being flooded with calls to block phone lines in an extortion scam that shows how easy such attacks can be, according to a DHS alert.