In an online conversation about the law's impact, Public Security Ministry anti-terrorism specialist Liu Yuejin said that it had greatly boosted information sharing both domestically and internationally since taking effect on January 1.
Still, Liu said terrorist acts were continuing in some parts of Xinjiang, where resentment against Chinese rule lingers among the native Turkic Muslim Uighur (pronounced WEE-gur) population, which is ethnically, religiously and linguistically distinct from China's Han majority.
"Counterterrorism and stability maintenance work remains extremely arduous."
Violence blamed on separatists and Muslim extremists has killed hundreds in recent years, although the past few months have been largely quiet, partly as a result of the massive security effort.
The law has particularly targeted online activity, raising concerns that its requirements that tech companies share information with the government could hurt business interests and further infringe upon human rights.