Friday, December 27, was supposed to be the start of a relaxing holiday weekend. But it was chaos for thousands of small business owners who use Bench, an accounting and tax startup based in Canada that raised $113 million from investors like Bain Capital Ventures and Shopify. That morning, they found themselves unable to log into their accounts right as tax season was starting. Bench’s entire website was offline except for a notice that Bench had shut down after 13 years of operation. Bench’s h...