WorldCat.org Response Time Issue Quickly Resolved; Attack on Servers Blocked
OCLC apologizes for poor response time on WorldCat.org during November 19 and 20. The OCLC servers that run WorldCat.org and WorldCat Local were attacked by processes initiated from nearly 2,000 IP addresses that proved to be registered to a single source. Our investigation revealed that these attacks seriously degraded response time for WorldCat.org and WorldCat Local users. OCLC blocked the attacks and response times returned to normal.