In 2006, he was charged with multiple counts of fraud and related offenses pertaining to irregularities in trading of Comverse stock; he subsequently fled to Namibia, a nation which has no extradition treaty with the US.

[1] A major breakthrough came when Alexander convinced Swiss telecom giant Ascom to invest US$6 million in the company in the mid 1980s, providing Comverse the capital it needed at that time.

[citation needed]: After Alexander left the United States on June 21, 2006, on a pre-planned annual vacation in Israel,[5] his lawyers arranged with American authorities that he would return to face indictment on July 30, 2006; however, he instead traveled to Germany.

[6] On August 9, 2006, the United States Securities and Exchange Commission filed a civil injunctive action in the United States District Court for the Eastern District of New York against Alexander, along with alleged co-conspirators William F. Sorin, Comverse's former Senior General Counsel, and David Kreinberg, Comverse's former chief financial officer.

Through this action, the Commission is seeking permanent injunctive relief, disgorgement of ill-gotten gains, civil damages, and a prohibition against any of the defendants becoming officers of a securities-issuing entity under SEC jurisdiction.

[11] He has also begun to introduce advanced technology to the country with his development of a low budget solar powered housing project for 100 low-income Namibian families.

[17] In 2011, Alexander settled the civil charges with the SEC and gave up bank accounts worth $46 million to federal authorities.