Complex sentence: In a response posted the same day, UltraReach wrote that it had already resolved these issues, and asserted that Appelbaum's report had misrepresented or misunderstood other aspects of its software.
Split into simpler sentences: In a response posted the same day, UltraReach wrote that it had already resolved these issues. They asserted that Appelbaum's report had misrepresented or misunderstood other aspects of its software.