A Boca Raton accounting firm renews its cyber insurance policy every year without much drama. This year, the questionnaire looked different. Instead of a single checkbox for "antivirus software," the underwriter wanted to know the specific endpoint detection and response platform in use, what percentage of devices it covered, whether it included servers, and who monitored alerts after 5 p.m. The firm had antivirus running on every machine. It still didn't have an answer that satisfied the carrier.
That scenario is playing out across Palm Beach and Broward County right now, especially among law firms, accounting practices, and real estate offices that handle sensitive client data and carry meaningful coverage limits. The distinction between antivirus and EDR used to be a technical footnote. It's now the line between a clean renewal and a denied application, or a policy that pays out and one that doesn't.
Antivirus Answers a Question Attackers Stopped Asking
Traditional antivirus works by comparing files against a database of known malware signatures. If the code matches something already identified as malicious, it gets blocked. That model made sense when most attacks relied on reused malware variants that security vendors had already catalogued.
It doesn't hold up against how ransomware actually spreads today. Modern intrusions rarely start with a recognizable malicious file. They start with a stolen credential, a compromised remote access tool, or legitimate software misused to move through a network. Antivirus has nothing to compare that behavior against, because nothing about it looks like malware on a signature list. The attacker isn't running a virus. They're logging in.
Endpoint detection and response takes a different approach entirely. Instead of scanning files for known bad code, EDR monitors behavior across every endpoint in real time: process activity, lateral movement, privilege escalation, unusual data transfers. When something deviates from normal patterns, whether or not it matches a known threat, EDR flags it and can isolate the affected device before it spreads. It's the difference between checking IDs at the door and watching what people actually do once they're inside the building.
Why Insurers Stopped Treating the Two as Interchangeable
Cyber insurance underwriting has hardened considerably over the past few renewal cycles, and the shift traces directly back to claims data. According to Verizon's 2025 Data Breach Investigations Report, which analyzed more than 12,000 confirmed breaches, ransomware was involved in 88% of breaches at small and mid-sized businesses, more than double the rate seen at large enterprises. Small businesses aren't collateral damage in a broader trend. They're the primary target, and ransomware is disproportionately how attackers get paid.
Carriers have adjusted their underwriting to match that reality. Coalition, one of the larger cyber insurance providers in the U.S. market, reported that ransomware remained the most expensive category of cyber claim in 2025, with an average loss of $269,000, even as initial ransom demands surged 47% year over year. That combination- rising demands and costly claims concentrated at smaller organizations- is exactly what pushes underwriters to demand better evidence of prevention before they'll extend or renew a policy.
Antivirus doesn't generate that evidence. It can't tell an insurer how a threat was detected, how fast it was contained, or whether it spread before anyone noticed. EDR produces exactly that record: timestamped detection, isolation, and response. For a carrier deciding how much risk to accept, that record is the difference between insurable and uninsurable.
What This Looks Like at Renewal for a Boca Raton Business
The businesses QuestingHound sees get the roughest renewal experience are the ones that assumed "we have security software" was a complete answer. It isn't anymore. A few patterns show up consistently:
The application asks for a named product, not a category. Insurers increasingly want to know which EDR platform is deployed, not just whether "endpoint protection" exists somewhere in the environment. A generic answer reads as a red flag.
Coverage has to be close to universal. A handful of unmanaged laptops or an old file server running legacy antivirus is often enough to complicate an application, even if every other device is properly covered. Underwriters have learned that the one unmonitored machine is usually where the breach starts.
Monitoring matters as much as the tool. An EDR platform that generates alerts nobody reviews after hours doesn't meet the bar that most carriers are now underwriting to. The expectation has moved toward alerts being reviewed and acted on around the clock, not caught the next business morning.
For professional services firms in particular, the exposure runs both directions. A law firm or accounting practice that fails to meet these controls risks a denied or non-renewed policy. One that misrepresents its controls on the application, claiming EDR coverage that doesn't actually exist across the environment, risks something worse: a carrier that rescinds coverage or denies a claim after a breach, when the gap between what was attested and what was actually in place comes to light during the forensic review.
We also compare all three approaches in EDR vs. MDR vs. antivirus, with guidance on which fits a typical Boca Raton business.
Closing the Gap Before Renewal, Not After
The businesses that go into a renewal cycle with the least friction are the ones that treated EDR as infrastructure rather than an item to check off once. That means EDR deployed across every endpoint, including servers and remote devices, alerts monitored continuously rather than reviewed on a schedule, and documentation ready to hand an underwriter without having to reconstruct it under deadline pressure.
It also means understanding where EDR fits into the bigger picture. It's a critical control, but insurers are increasingly looking at it alongside multi-factor authentication, tested and isolated backups, and a documented incident response plan. A strong EDR deployment sitting next to weak backup practices or inconsistent MFA still leaves gaps a carrier will notice.
QuestingHound has spent 25 years working inside South Florida businesses, and the pattern in nearly every cybersecurity risk assessment we run is the same: the gaps are rarely exotic. They're foundational issues, like a security tool that was installed once and never verified, that accumulate quietly until a renewal application or a breach forces the question. Our Managed Security Services build EDR into a layered defense that also covers network security and data backup and recovery, so the controls an insurer wants to see are the same controls actually protecting the business day to day.
If you're not certain your current setup would hold up against this year's underwriting questions, a cybersecurity risk assessment is the fastest way to find out before your renewal date does. We'll show you exactly where antivirus is still doing the work of EDR, in plain language, with specific steps to close the gap. For a broader look at what South Florida businesses are up against this year, including more on the insurance pressure firms are facing, see our Cybersecurity Risk Report for South Florida Businesses.
QuestingHound provides managed IT services to businesses throughout Boca Raton and greater South Florida. If you're not sure where your security posture stands ahead of your next cyber insurance renewal, we offer a complimentary consultation to walk through it.
John Boden
John brings over 25 years of hands-on IT experience to every client relationship and has personally overseen hundreds of technology assessments across Broward and Palm Beach County. His approach is built on accountability — when QuestingHound makes a mistake, they own it — and on the belief that trust is the foundation of any useful IT relationship.
