Pgiam/iStock via Getty Images Introduction Perion Network's (NASDAQ:PERI) financial performance is impressive since the company's revenue growth multiple times outpaced the overall digital advertising market expansion in recent years. PERI's profitability is also expanding rapidly, and the company has a clean balance sheet. Perion is an innovative tech company, and its business model looks highly efficient. From the risks perspective, potential investors should be aware that Perion faces a substantial custo ...