The Hong Kong government will step up national security education through activities organised by disciplinary forces, schools and community groups, Chief Secretary Eric Chan has said, as he warned the city to be cautious about “soft resistance.” Challenges to national security in Hong Kong were “constantly changing,” and “anti-China forces” would not “give up easily,” Hong Kong’s No.2 official Chan said in an interview with Beijing-backed newspaper Wen Wei Po published on Friday. Hong Kong’s domestic security law, known colloquially as Article 23, which came into force last month, empowers th…