• Down-to-Earth Cloud Security

    At Tenchi Security, we provide consulting services and products to help your organization embrace the benefits of the cloud in a secure and compliant fashion. Our work will help security transition from a blocker to an enabler of the business teams' pursuit of the increased flexibility, scalability, automation, and savings of the cloud.

  • News

    Articles, press releases and updates

    October 21, 2020 · AWS,Incident Response,Research,Cloud,CloudTrail
    When questioned about how to properly monitor AWS environments, especially the control plane, the...
    Our founder Alexandre Sieira presented the talk "SaaSpocalypse - The Power and Complexity of AWS...
    During some tests for the EC2 part of our AWS Cloud Infrastructure Security Training, we stumbled...
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  • What We Do

    Cloud technology holds the promise of a more efficient style of IT operations, with more automation, scalability, and much-improved capital allocation. This is why cloud adoption has been a big trend that is benefitting large companies, even in verticals with stringent compliance requirements.


    The challenge is that, as with any paradigm shift in technology, organizations often struggle. Cloud architecture, operations, and security require a specialized skill set that is still in short supply. The consequence is felt directly in projects that fail to meet deadlines or savings projections, plus a failure to maintain adequate levels of security and compliance controls.

  • "Overall organizations are 3x as likely to have high-value assets with severe findings off-prem vs. on-prem"

    "Through 2025, 99% of cloud security failures will be the customer’s fault."

  • Our team of seasoned cloud and security experts will help your IT and security teams to define the right cloud strategy, adopt best practices, implement security automation, avoid common pitfalls and get the most out of your cloud investments.

    Given the right tools and expertise, we can help your cloud environments achieve a superior level of security at a fraction of the cost when compared to an equivalent on-premises infrastructure.

  • "Enterprises that implement appropriate cloud visibility and control tools will experience one-third fewer security failures."

    "Overall, organizations are over twice as likely to have high or critical exposures in high-value assets hosted in the cloud vs. on-prem. BUT clouds with the lowest exposure rates do twice as well as on-prem."

  • Team

    Alexandre Sieira


    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.


    LinkedIn | Twitter

    Dani Dilkin

    Senior Partner

    Dani Dilkin is a Senior Partner of Tenchi Security and responsible for consulting delivery services. With more than 23 years of experience in this field, Dani is a specialist in managing projects that involve complex environments, cutting edge technology and innovation. Dani has a large experience in advisory and consulting services for global corporations and led the Brazilian practice of Cyber Security ​​in Kroll and Deloitte over five years. He is also a member of the Information Security Group of Brazilian Internet of Things association.



    Rodrigo "Sp0oKer" Montoro

    Senior Researcher

    Rodrigo Montoro has over eighteen years of experience in the information security and technology markets. Most of his work has been focused on endpoint security monitoring and hardening, network security monitoring and threat detection. He is the inventor of two patents related to techniques for the detection of malicious documents and traffic. He co-founded and coordinated the rules writing activities of the Brazilian community for Snort, a widely-used open-source tool for networking intrusion detection. Montoro is also an accomplished international lecturer, having present at respected conferences such as OWASP AppSec (US and Brazil), SANS DFIR Summit and SIEM Summit, Toorcon, Hackers 2 Hackers Conference (São Paulo and Mexico), SecTor, Mind The Sec, Roadsec, FISL, SOURCE (Boston a Seattle), ZonCon, BlackHat (São Paulo), BSides (Las Vegas and São Paulo). His professional experience includes several highly respected Brazilian information security companies, and also Sucuri Security and Trustwave Spiderlabs.

    LinkedIn | Twitter

    Felipe "Pr0teus" Espósito

    Senior Researcher

    Felipe Espósito graduated in Information Technology at UNICAMP and has a master's degree in Systems and Computing Engineering by COPPE-UFRJ, both among the top technology universities in Brazil. He has over ten years of experience in information security and IT, with an emphasis on security monitoring, networking, data visualization, and threat hunting. He is a founder of the HackerMakerSpace in Rio de Janeiro and presented at respected conferences such as Hackers 2 Hackers Conference, BHACK, BSides (Las Vegas and São Paulo), FISL, Latinoware, and SANS SIEM Summit.


    LinkedIn | Twitter

  • Contact Us

    Whether you are still planning your first migration into the cloud or are already running several workloads, contact us and start your accelerated cloud security journey today.

    São Paulo, Brazil
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