Exhibit 16.1 [LETTERHEAD OF BDO SEIDMAN, LLP] September 7, 1999 Securities and Exchange Commission 450 Fifth Street Washington, D.C. 20549 Gentlemen: We have been furnished with a copy of the response to Item 4 of Form 8-K for the event that occurred on August 31, 1999, to be filed by our former client, Spectrum Information Technologies, Inc. We agree with the statements made in response to that Item insofar as they relate to our Firm. Very truly yours, /s/ BDO Seidman, LLP BDO Seidman, LLP