◆CISO since 2011 — JPMorgan Chase, IFF, NFL ◆2026 CSO Hall of Fame inductee ◆Independent director — Cylera ◆Cybersecurity, since 1997 ◆New York, NY ◆CISO since 2011 — JPMorgan Chase, IFF, NFL ◆2026 CSO Hall of Fame inductee ◆Independent director — Cylera ◆Cybersecurity, since 1997 ◆New York, NY ◆CISO since 2011 — JPMorgan Chase, IFF, NFL ◆2026 CSO Hall of Fame inductee ◆Independent director — Cylera ◆Cybersecurity, since 1997 ◆New York, NY
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Ideas & Insights.

Long-form posts and short LinkedIn notes — Tomás's thinking on cybersecurity, AI governance, board-level risk, and leadership.

File Extensions & security

Did you know that changing the file extension of a file can make it appear as a different file type? For example, you can change a .txt file to a .

#InfoSec tip of the day – File Extensions & security:”

#InfoSec tip of the day - File Extensions & security:" "Did you know that changing the file extension of a file can make it appear as a different file type? For example, you can change a .txt file to a .jpg file and it will still open in a text…

#InfoSec tip of the day – Wifi Security:”

#InfoSec tip of the day - Wifi Security:" "Have you heard of the "Evil Twin" attack? It's a type of wireless attack where cybercriminals create a fake Wi-Fi access point with a name similar to a legitimate one in order to steal sensitive information. Double-check the name of the Wi-Fi…

Account Security

Did you know that one of the easiest ways to protect your online accounts is by using a unique and obscure username? Most people use common usernames that can be easily guessed or…

#InfoSec tip of the day – Account Security :”

#InfoSec tip of the day - Account Security :" "Did you know that one of the easiest ways to protect your online accounts is by using a unique and obscure username? Most people use common usernames that can be easily guessed or obtained through social engineering. By using a username…

#InfoSec tip of the day – Data hygiene:”

#InfoSec tip of the day - Data hygiene:" "Keep your device clean, just like your teeth! Regularly delete unnecessary files, temporary files, and cached data. It's like brushing away the digital plaque" "#cybertips #cybersecurity #securityawareness

Wifi Security

Have you heard of the "Evil Twin" attack? It's a type of wireless attack where cybercriminals create a fake Wi-Fi access point with a name similar to a legitimate one in order to…

Data hygiene

Keep your device clean, just like your teeth! Regularly delete unnecessary files, temporary files, and cached data. It's like brushing away the digital plaque

#InfoSec tip of the day – Online safety:”

#InfoSec tip of the day - Online safety:" "Don't overshare online, it's like telling a stranger your life story on a crowded subway. You never know who's listening." "#securitytips #cybersecurity #communitysecurity #securityawareness