The FBI is warning that fraudsters are using internet scams in the aftermath of the Asian tsunami disaster.
The agency is warning of phishing websites claiming to be for relief charities, and emails offering to find victims for a fee or requesting that money be deposited in overseas accounts.
It also fears that virus writers will use attachments claiming to be pictures of the disaster to propagate malicious code.
"The FBI, in conjunction with domestic and international law enforcement and industry partners, abhor these egregious actions and is resolved to aggressively pursue those who attempt to victimise philanthropic individuals," the agency said in a statement.
It advises users to delete any unrecognised spam and only donate to registered charities that can be verified. It also recommends not opening any picture attachments from unknown third parties.
If people encounter problems they are advised to contact the Internet Crime Complaint Center to check for news of the latest scams.
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