The distributed denial-of-service attack failed to crash those payment networks, but David says Anonymous did manage to poke around their back-end computer systems.

FORBES: Magazine Article

At the same time, huge regional differences between the treatments paramedics give mean your chances of surviving a heart attack or a car crash may well depend on where you live.

BBC

During the past 15 years or so international bank regulation has been concerned mostly with the ability of the system to sustain shocks, such as a stockmarket crash, a foreign-exchange crisis or a terrorist attack.

ECONOMIST: Open wider | The

In a DDoS attack, computers flood a website with requests, overwhelming its servers and causing it to crash or become inaccessible for many users.

CNN: Spain arrests suspect in massive cyberattack

Even a helicopter crash on the night of the raid did not upset the American Navy Seals' efficient attack.

ECONOMIST: One year on, the story makes for a gripping read

Domestic and transnational terrorism was ramping up, as illustrated by the 1993 World Trade Center bombing, the 1995 Tokyo subway Sarin attack, the 1995 Oklahoma City bombing, the 1995 "Bojinka" conspiracy to hijack airplanes and crash them into buildings, the 1996 Khobar Towers bombing, the 1996 Summer Olympics bombing, Osama bin Laden's 1996 and 1998 "Declarations of War" on America, the 1998 East African embassy bombings, the 2000 USS Sullivans bombing attempt, the 2000 USS Cole bombing, and the 2000 Millennium bombing plot.

CENTERFORSECURITYPOLICY: Holder's 'disgraceful' history

In a DDoS attack, multiple servers send simultaneous requests to the target's Web servers, ultimately causing them to crash.

WSJ: Cyberattack on Spam Fighter Said to Be Over