Accountants aren’t the only ones busy during tax season. It has become so common for hackers to ramp up their criminal operations with tax-related campaigns that the IRS issues warnings about tax-related scams targeting consumers every year. However, enterprises are also vulnerable to tax season threats. Researchers have even discovered hackers distributing the Trickbot banking trojan through malicious Excel documents while disguising themselves as accounting, tax and payroll service firms.

What’s new this season is the increase in file-sharing amongst enterprises, customers and partners. The global health crisis has shifted business operations to become more digital than ever and has made the exchange of documents a key component in everyday workflows. This includes the dissemination of tax forms internally within an organization or to third-party accounting professionals.

A majority of tax-related scams targeting businesses involve...

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