Computer Online Forensic Evidence Extractor also said (COFEE) is a tool kit, developed by Microsoft, to help computer forensic investigators extract evidence from a Windows computer. Installed on a USB flash drive or other external disk drive, it acts as an automated forensic tool during a live analysis. Microsoft provides COFEE devices and online technical support free to law enforcement agencies.
COFEE was developed by Anthony Fung, a former Hong Kong police officer who now works as a senior investigator on Microsoft's Internet Safety Enforcement Team. Fung conceived the device following discussions he had at a 2006 law enforcement technology conference sponsored by Microsoft. The device is used by more than 2,000 officers in at least 15 countries.
A case cited by Microsoft in April 2008 credits COFEE as being crucial in a New Zealand investigation into the trafficking of child pornography, producing evidence that led to an arrest.
In April 2009 Microsoft and Interpol signed an agreement under which INTERPOL would serve as principal international distributor of COFEE. University College Dublin's Center for Cyber Crime Investigations in conjunction with Interpol develops programs for training forensic experts in using COFEE. The National White Collar Crime Center has been licensed by Microsoft to be the sole US domestic distributor of COFEE.
On November 6, 2009, copies of Microsoft COFEE were leaked onto various torrent websites. Analysis of the leaked tool indicates that it is largely a wrapper around other utilities previously available to investigators. Microsoft confirmed the leak; however a spokesperson for the firm said "We do not anticipate the possible availability of COFEE for cybercriminals to download and find ways to ‘build around' to be a significant concern".