American Express, Ericsson, JPMorgan Chase and HSBC all contributed to the round, boosting malware protection technology developer Menlo Security's total funding to $85m.

US-based cybersecurity software developer Menlo Security closed a $40m series C round on Monday featuring payment services firm American Express, telecommunications technology producer Ericsson and financial services firms JPMorgan Chase and HSBC.

Venture capital firms General Catalyst, Osage University Partners and Engineer Capital also took part, as did private equity firm Sutter Hill Ventures, while Amex and Ericsson took part through their respective corporate venturing units, American Express Ventures and Ericsson Ventures.

Menlo has developed a cybersecurity platform to protect…