E-commerce fraud losses continue to grow, according to electronic payment and security management provider CyberSource. Fraudsters are predicted to siphon about $3bn (about £1.6bn) from US e-commerce in 2006, a 7 percent increase over 2005, the vendor reports.

While the percent of revenue lost to fraud is estimated to have narrowed slightly – from 1.6 percent in 2005 to 1.4 percent this year – the dollar amount grew from $2.8bn to $3bn as e-commerce sales grew by more than 20 percent, CyberSource says in its eighth annual survey of e-commerce fraud, released today. CyberSource sponsored the survey, which Mindwave Research conducted in September and October.

On the technology front, more merchants are using fraud management tools to battle the culprits, Cybersource reports. Among the automated tools growing in popularity are IP geolocation products that evaluate the risk of an e-commerce transaction based on geographic data (used by 35 percent of respondents); order velocity monitoring tools that assess purchases based on metrics such as total amount and frequency (33 percent); and positive lists that report buyers known to be good customers (21 percent).

Despite the increase in automated tool usage, however, more merchants than ever before are reviewing some orders manually. Among the study's 351 responding respondents, 81 percent say they engage in some manual review of orders, compared with 73 percent last year. On the positive side, fewer orders are being reviewed manually: Merchants this year said they review 28 percent of their orders manually, down from 35 percent a year ago.