Alexandre (or Alex) Sieira is a successful information security entrepreneur in the information security field with a global footprint since 2003. He began his security career as a Co-Founder and CTO of CIPHER, an international security consulting and MSSP headquartered in Brazil which was later acquired by Prosegur. In 2015, he became Co-Founder and CTO of Niddel, a bootstrapped security analytics SaaS startup running entirely on the cloud, which was awarded a Gartner Cool Vendor award in 2016. After the acquisition of Niddel by Verizon in January 2018, he became the Senior manager and global leader of the Managed Security Services - analytics products under the Detect & Respond portfolio tower at Verizon. Currently is the CTO and Co-Founder of Tenchi Security.