{"id":3383,"date":"2025-06-24T06:00:00","date_gmt":"2025-06-24T13:00:00","guid":{"rendered":"https:\/\/www.paloaltonetworks.com\/perspectives\/?p=3383"},"modified":"2025-08-15T14:58:29","modified_gmt":"2025-08-15T21:58:29","slug":"my-first-10000-days-in-cybersecurity","status":"publish","type":"post","link":"https:\/\/origin-www.paloaltonetworks.sg\/perspectives\/my-first-10000-days-in-cybersecurity\/","title":{"rendered":"My First 10,000 Days in Cybersecurity"},"content":{"rendered":"\n

A couple of months ago, I did the math. I\u2019ve been in the cybersecurity industry for roughly 10,000 days \u2014 a milestone that sounds immense until you realize how quickly the days turn into decades. This reflection inspired me to look back at the journey, not just for myself, but for our entire industry. While the core threats we face \u2014 malware, denial-of-service, meddler-in-the-middle attacks \u2014 remain stubbornly familiar, the landscape around them has been completely terraformed. What has changed is the speed, scale and sophistication of our adversaries; the evolution of our role as defenders; and the strategic imperative to change how we think about security itself.<\/p>\n\n\n\n

Tough Lessons, but a Foundational Experience<\/h2>\n\n\n\n

My own journey began with an unintentional act of campus-wide chaos. In the mid-90s, as a computer science student at Purdue, I was given an assignment on interprocess communication. The goal was to write a program that could self-replicate across different processes. I became so engrossed in the challenge that I decided to take it a step further: What if I could make it replicate across multiple machines on the network?<\/p>\n\n\n\n

In what I thought was a moment of cleverness, I created a program that did just that. It wasn\u2019t malicious; it didn\u2019t steal data or delete files. As a learning experiment, I even added a harmless pop-up message \u2014 \u201cHello, Earthlings\u201d \u2014 to confirm it had been executed. You can probably guess what happened next. The program began propagating across almost every computer lab on campus. Machines crashed under the unexpected load, and within hours, the IT department had to shut down the entire network.<\/p>\n\n\n\n

After I confessed, the university, to its great credit, didn\u2019t punish me. Instead, they worked with me to build a kill switch and understand the vulnerability. That experience was foundational. It taught me that, just because you can<\/em> do something, it doesn\u2019t mean you should<\/em> do it. More importantly, it taught me the critical need for guardrails, for control, and for having a good set of brakes when you\u2019re moving fast. It\u2019s a lesson that developers, even 10,000 days later, are still learning as we work to embed security into the beginning of the development lifecycle, instead of treating it as a speed bump on the road to innovation.<\/p>\n\n\n\n

The CISO: From Technical Operator to Business Executive<\/h2>\n\n\n\n

When I began my career, there was no such thing as a CISO. We were security managers, focused almost exclusively on the network and the endpoint. Today, the CISO has become a cornerstone of digital transformation, a shift that accelerated dramatically post-COVID when the business turned to us first to enable secure, remote work.<\/p>\n\n\n\n

The modern CISO can no longer be just a technologist whose knee-jerk reaction is to buy the latest and greatest tool. I\u2019ve seen the most successful leaders evolve across four key areas:<\/p>\n\n\n\n