Knowledge Hub

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

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

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Healthcare settings are inherently high risk, operating as complex ecosystems where clinical demands and safety risks overlap for patients and healthcare providers. Within 24/7 emergency departments, psychiatric units and late-night urgent care centers, clinical staff manage unpredictable patient surges alongside intense emotions as the norm. 
In a recent interview with Security Sales & Integration, Senior Vice President of Software Engineering at Protos Security, Cameron Tabor, explains how the Protos Assistant helps security teams turn complex operational data into actionable insights. Read the full interview to learn more.
Protos Security is sponsoring this year’s Military and Law Enforcement Appreciation Day at GSX 2026 on September 16. This video interview features Glen Sider, Vice President of Vendor Management at Protos Security, who provides insight about the value of former public sector professionals in the security industry and how the industry can give back.
Multi-location healthcare security is a complex ecosystem within a highly regulated industry. A single health system can simultaneously operate a downtown trauma center, suburban urgent care clinics, regional dialysis centers and standalone behavioral health spaces. While all of these facilities share the goal of delivering the best possible patient outcomes and care, their security profiles and risk vulnerabilities are fundamentally different. 
In an interview with Mergermarket, CEO Mark Hjelle discussed Protos’ strategy for pursuing acquisitions that strengthen its off-duty law enforcement network, executive protection and threat assessment expertise, security technology capabilities and presence in key industries.
This article compares self-directed and managed off-duty security programs in healthcare, highlighting how managed programs can improve officer fill rates, reduce administrative burdens and provide more consistent coverage. By coordinating multiple law enforcement agencies, accelerating officer pay and managing scheduling and compliance, Protos Security helps healthcare organizations strengthen security.
In an interview with Law.com, Julie Fraser shares how she built Protos Security’s first in-house legal department by first taking the time to understand the business and its people. Rather than serving as a roadblock, she has positioned legal as a strategic partner that helps the company balance growth with risk management through collaboration, proactive problem-solving and practical guidance.
Protos Security, the leading software-enabled managed security services provider delivering integrated protection solutions across North America, is proud to announce that it has been selected as a finalist for the 2026 U.S. Outstanding Security Performance Awards (OSPAs) in the Outstanding Contract Security Company (Guarding) category.
The true test of an enterprise security program is not during everyday operations. The ultimate challenge arrives when a crisis hits. This guide provides the core components of enterprise crisis readiness, detailing how to eliminate corporate bottlenecks, leverage real-time data and execute high-stakes recovery operations safely. 
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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

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.