By Raphael Satter and Christopher Bing WASHINGTON (Reuters) -Suspected Chinese hackers tampered with widely used software distributed by a small Canadian customer service company, another example of a “supply chain compromise” made infamous by the hack on U.S. networking company SolarWinds. U.S. cybersecurity firm CrowdStrike said in a blog post it had discovered malicious software being distributed by Vancouver-based Comm100, which provides customer service products, such as chat bots and social media management tools, to a range of clients around the globe. The scope and scale of the hack wa…