Attorney General John Ashcroft said yesterday that more than 130 people had been arrested in Internet frauds this year that swindled 89,000 victims, an announcement that highlights efforts against such activities as pyramid schemes, credit card skimming, fake escrow accounts and bogus auctions. “These `cyberswindles’ and ‘dot-cons’ present new challenges to law enforcement,” said Mr. Ashcroft, flanked by six other officials, including Director Robert S. Mueller III of the F.B.I., and Timothy J. Muris, chairman of the Federal Trade Commission. The officials presented these details that they said represented a wide range of criminal activity using the Internet: Full Story