On this week’s Cyber Security Brief podcast, we discuss our new research into the privacy of your hotel booking details, and how we found that two in three hotel websites leak guest booking details and allow access to personal data. We also have an update on the case of the Chinese national who tried to gain access to President Trump’s Mar-a-Lago resort while carrying a malware-laden thumb drive. We also discuss a complaint against audio equipment maker Sonos in the UK alleging it is coercing customers into surrendering an excessive amount of personal information, and the discovery of a dark marketplace called Genesis that is selling the digital fingerprints of thousands of people.