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Late 1998 and After: US Intelligence Still Monitors Bin Laden’s Calls after He Stops Using His Satellite Phone

Shortly after an August 1998 US missile strike on Afghanistan (see August 20, 1998), bin Laden stops using his satellite phone, correctly deciding that it was being monitored by US intelligence (see Late August 1998). According to counterterrorism expert Rohan Gunaratna, al-Qaeda quickly “developed a system to deceive those monitoring his calls. [But] Western security and intelligence agencies were soon able to monitor the new system, which was based on transferring international calls within safe houses in Pakistan to make them seem like domestic calls.” Other al-Qaeda leaders such as Abu Zubaida will be frequently monitored as they make calls using this new system (see October 1998 and After). Gunaratna later claims to have learned this from a confidential source in a “communications monitoring agency” in Western Europe. [Gunaratna, 2003, pp. 15-16, 3291] It is not known how long it took until al-Qaeda realized this new system was compromised, but there are accounts of bin Laden and Zubaida’s calls being monitored days before 9/11 (see Early September 2001, September 9, 2001, and Early September 2001).

Entity Tags: Osama bin Laden, Abu Zubaida

Timeline Tags: Complete 911 Timeline

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