(CNN) — CNN — (CNN) — If you want to help victims of the Boston Marathon bombings be careful. That's the warning from watchdog groups who say online scammers are looking to profit from the tragedy.
Dozens of website domains were registered within hours of the deadly attack. One fraudster set up a twitter account minutes after the bombing that claimed to be associated with the Boston Marathon organization, it was quickly shut down.
Your best bet is to support well-known national and regional charities.