Alexander Garcia-Tobar

Alexander García-Tobar is the CEO and co-founder of Valimail, an anti-phishing company in San Francisco. Alex has held various executive and analyst positions at leading research companies such as The Boston Consulting Group and Forrester Research and at Silicon Valley startups such as ValiCert, Sygate, and SyncTV.

Why email needs a zero-trust security model

Alexander Garcia-Tobar

November 25, 2020

Content-centric solutions that evaluate each message based on how likely it is to be bad create a gap through which identity-based email attacks can slip. A zero-trust email security model is vital to closing that gap. Zero-trust may also be characterized as zero-assumption.

Six Steps to Boost Email Security for Remote Employees

Alexander Garcia-Tobar

May 14, 2020

To prevent damage from phishing attacks, organizations need to take a few simple but important steps to improve their email security posture. Follow these six strategies, and your email infrastructure will be far safer from phishing and business email compromise (BEC).

LIVE: August 27, 2026 at 2 PM EDT Explore how AI-driven cloud security solutions can elevate your security domain enhancing threat detection, streamlining operations, and delivering the resilience modern organizations demand.

LIVE: September 10, 2026 at 2 PM EDT Turning an emergency management plan into an actionable program that prepares staff, students, and partners to respond effectively is a challenge. Learn to move beyond compliance and build a resilient school safety program.

Alexander Garcia-Tobar

ARTICLES

Why email needs a zero-trust security model

Six Steps to Boost Email Security for Remote Employees

Sign-up to receive top management & result-driven techniques in the industry.

Join over 20,000+ industry leaders who receive our premium content.