The team claims to have found 114,013 new sites in the seven days to 18 June, and said that the bulk of the attacks were focused on one particular bank.
"I am not sure if that is a record for a single week, but it certainly blows away any monthly totals in publications from the Anti-Phishing Working Group," said Gunter Ollmann, director of security strategy at IBM Internet Security Systems.
"On examining which organisations were being targeted in last week's phishing scams, one bank stands out by a long shot. Regions was targeted in 85 per cent of all the automated phishing kit deployments observed by X-Force last week."
Regions has US$140bn in assets under management and has branches across the American south and midwest.
The IBM team also found more evidence of the popularity of phishing toolkits. Over 99 per cent of all phishing sites were constructed using a commercially available toolkit which automatically generates reproductions of popular banking sites.
X-Force also believes that the phishing sites are the work of relatively few people. All the sites were being run from just 111 domains, over half of which were hosted in China, Taiwan and Hong Kong.
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Digital Leadership Day Queensland
Government Cyber Security Showcase Queensland
Government Innovation Showcase Queensland
Local Government Focus Day Queensland
Digital As Usual Cybersecurity Roadshow: Brisbane edition
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