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Security Blog

Stay informed with the latest trends, strategies and thought leadership articles in the world of security services. Protos’ blog delivers expert insights to help businesses and individuals safeguard what matters most.

Here you’ll find valuable resources to support your security goals.

Our Latest Article

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Pipeline construction is not a forgiving environment. The sites are large, the timelines are long, the assets are expensive and the regulatory oversight is unrelenting. Energy is among the most heavily regulated industries in the United States, and the security programs that support pipeline construction and lay-down yard operations are not exempt from that scrutiny.

This blog explains why petrochemical facilities require a highly specialized security approach due to their scale, regulatory demands and exposure to sophisticated threats. Most incidents are planned and often involve insider knowledge, particularly during high-risk turnaround periods when large numbers of subcontractors are on site.
Refinery turnaround security requires a different level of planning and control than day-to-day industrial facility security. For most industrial facilities, day-to-day operations carry a predictable rhythm. The same crews, the same access points and the same routines. But when a refinery goes into turnaround, that rhythm breaks entirely.  
This guide provides a practical framework for building an effective house of worship security program that protects congregants without compromising a welcoming environment. It outlines how faith leaders and security teams can start by assessing their institution’s unique threat profile, then align the appropriate level of security. Read our full series on security in religious institutions to learn more.
Multi-site houses of worship face complex security challenges across campuses, neighborhoods and service schedules. Learn how centralized oversight and the right mix of security resources can strengthen your religious institution security program.
This article explains why many houses of worship are reevaluating their security approach as threats become more targeted and severe. It highlights how off-duty law enforcement provides a higher level of deterrence, authority and situational awareness compared to traditional or volunteer-based security models.
Protos recently attended ISC West 2026. While we were there, we noticed a shift in the security industry, where AI is no longer a differentiator but an expectation, and the focus is now on real-world results, not just features. Read our full article by Katie Irvine, Director of Product Marketing, to learn more about the latest trends we saw at the show.
Security outcomes are shaped not only by coverage and data but by the psychology of safety, how employees and customers perceive their environment, the credibility of the security presence and the quality of interactions during tense situations. Read our full blog series about the psychology of safety in workplaces and communities.
Houses of worship face a unique challenge: how to stay open and welcoming while addressing real security threats. This article explores why traditional approaches often fall short and how off-duty law enforcement offers a more balanced solution, combining behavioral expertise with community familiarity.
Explore Protos’ connected security solutions and product ecosystem. This blog provides insight into how integrated technology delivers real-time visibility, accountability and smarter security management.
Protos
Headquarters

383 Main Ave, Suite 505
Norwalk, CT 06851, USA
Phone: 203.941.4700

Protos
Headquarters

383 Main Ave, Suite 505
Norwalk, CT 06851, USA
Phone: 203.941.4700

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Mark Hjelle

Chief Executive Officer

Mark Hjelle is the CEO of Security Services Holdings, LLC as well as Protos Security and its subsidiaries. Mark is an experienced Chief Executive Officer and Board Member who has led large national business and facilities services firms for nearly 25 years delivering strong top- and bottom-line growth while building high-performing teams with strong culture. Most recently, he was CEO for CSC ServiceWorks, a B2B2C provider of technology-enabled consumer services. Prior to CSC, Mark was President of Brickman/Valleycrest a national provider of exterior landscape and snow removal services. Over the course of his 18-year tenure at Brickman, he held numerous leadership positions in operations, finance and business development. Mark holds a Bachelor of Science degree in Economics from The Wharton School of Business, University of Pennsylvania, a Master of Government Administration from the University of Pennsylvania Fels Institute of Government and a Law Degree from Case Western Reserve School of Law.