The University of Oxford announced Monday that it is temporarily blocking access to Google Docs, citing a series of "phishing" attacks in which people have used Google Docs to collect e-mail addresses linked to the university's network. A statement from Oxford said: "We appreciate and apologize for the disruption this caused for our users. Nevertheless, we must always think in terms of the overall risk to the university as a whole, and we certainly cannot rule out taking such action again in future, although our thresholds for doing so may be somewhat higher. We are meanwhile investigating several possible technical measures for reducing the risks to the university with less impact on legitimate network usage, and will be reviewing our emergency communications procedures. We will also be pressuring Google that they need to be far more responsive, if not proactive, regarding abuse of their services for criminal activities."