Eugene Kaspersky is a buccaneering figure, proud of his achievements in building a thriving anti-virus firm over the last 20 years and never shy about giving his opinions at industry conferences.
But now the firm he founded has to face up to a crisis in a key market after the Trump administration banned the use of his products by US government agencies
When we spoke to him, he seemed to think that his company was the victim of a smear campaign: "Someone is using this situation, turning their aggressive PR against my company."
On this week's Tech Tent we talk to the founder of the Russian cyber-security firm banned by the US government. We also look at whether Apple is taking a big risk by pushing the price of its latest iPhone so high, hear how an app helped save victims of flooding in Texas and discuss whether there is a better way for companies to store data and keep our information safe.