after stripping the visitor's IP address from the request. Circumstances in which EFF may need to log and retain IP addresses and other technical information include when we believe it is reasonably necessary for EFF’s mission and functionality, including situations such as:</p> <ul> <li>site testing,</li> <li>diagnosis of technical problems,</li> <li>defending against attacks to the site,</li> <li>handling a spike in traffic or other abnormal, short-term circumstances.