IDG Ventures, which invested in the cybersecurity company's $15m series A round last year, has returned to contribute to $10m of new funding.

US-based cybersecurity technology producer Tempered Networks has secured $10m in a funding round backed by media company International Data Group’s investment affiliate IDG Ventures, GeekWire reported yesterday.

Venture capital firm Rally Capital also took part in the round alongside all Tempered’s existing investors, though the company has only named VC firm Ignition Partners as an additional shareholder.

Founded in 2014, Tempered Networks initially developed internet-of-things security products but is now widening its scope to include entire enterprise networks. The technology…