A hurricane watch is issued, and the island shifts gears. Focus shifts to staff safety, keeping customers informed, and making sure core operations can run through whatever the next few days bring.
At the same time, attackers are preparing too. Cybersecurity agencies regularly report spikes in phishing, fraud, and malware around major natural disasters. That’s because criminals know organisations are distracted and more likely to miss a warning sign. Storm‑themed emails, fake relief links, and urgent login requests become the bait they use to test every weakness they can find.
In our security assessments across the region, we keep seeing the same pattern: essential systems with avoidable weaknesses, like unsupported software and legacy protocols, that give malicious actors a ready-made path to critical systems. These issues might look like something you can postpone. But in reality, they’re your vault door sitting ajar.
During hurricane season, that open door makes a difference. It takes only one convincing email or guessed password for those hidden weaknesses to turn into a serious incident. In this post, we’ll show you the specific gaps we keep finding in Caribbean organisations and how to close them before the storms arrive.
Why hurricane season makes easy targets even easier
Cybercriminals treat major storms like campaign windows. The moment a watch or warning appears, they spin up phishing emails and fake websites related to storm updates, insurance claims, and disaster relief. The goal is simple: get busy people to click first and check details later, then use those clicks to plant malware or steal credentials.
This is strategic. When a storm is approaching, your teams are having more conversations over email, messaging apps, and remote tools. They’re watching multiple channels at once and trying to stay on top of updates from leadership, customers, and official sources. A well-crafted message that appears to come from a trusted source, like an insurer or service provider, feels like part of a natural flow of information.
Attackers exploit that moment of trust to go after VPNs, remote gateways, and cloud logins to trick staff into entering credentials on fake portals. Using targeted spear-phishing and credential-stuffing campaigns, they look for any point where security controls are weaker than they should be.
When those attempts find environments with default passwords, remote access that only asks for a username and password, or legacy protocols exposed to the internet, the journey from “one click” to “full access” can be dangerously short.
During hurricane season, long‑standing weaknesses become a magnet for hackers. The same vulnerabilities that were background noise before June turn into opportunities attackers expect to find and exploit once hurricane preparations begin.
What our security assessments revealed
Every recent security assessment we’ve completed in the region has shown the uncomfortable truth: critical everyday business systems carrying known, avoidable vulnerabilities. In most cases, these issues are not tucked away on obscure servers. They are known vulnerabilities with documented exploits on systems and access routes that staff use routinely.
Two patterns showed up in every environment. First, at least one production system was still running end-of-life software, long past vendor support, with documented high-severity vulnerabilities. Second, at least one legacy or insecure protocol was still enabled, from old email authentication protocols to clear-text file transfer and outdated encryption, providing external threat actors with paths that bypass modern controls and logging.
Assessments also uncovered critical databases using factory-default credentials, and remote-access gateways relying only on usernames, passwords, and pre-shared keys. Anyone with those defaults can gain direct access to sensitive staff and customer records, and with no multifactor authentication (MFA) in place, a stolen or guessed credential could open the door to the entire environment. And in too many cases, those technical issues were made worse by a lack of clear direction: no incident response plan, no defined security roles during disruption, and no regular leadership-level review of cyber risk.
Across different industries, sizes, and IT setups, these same five gaps kept appearing. Let’s look at them one by one, and why each of them becomes more dangerous when storm conditions change how your people work, systems are accessed, and decisions are made.
5 hurricane season cybersecurity gaps hackers exploit
A closer look at the five recurring gaps shows why these issues are so dangerous in hurricane season. Each one opens the door to systems the business depends on every day.
1. End‑of‑life software left in production
In every organisation assessed, we found at least one production system running end‑of‑life or severely outdated software, often years out of support and carrying dozens of known, high‑severity vulnerabilities. These were systems the business depended on daily for finance, operations, or customer service, still in operation because they were too complex or expensive to replace. And sometimes, to avoid change during disruption, those same systems are deliberately left “until after the season”, exactly when malicious activity is increasing. That combination changes end‑of‑life software from technical debt to an entry point that malicious actors can use when the organisation can least afford a loss of access.
2. Legacy authentication and insecure protocols
Alongside outdated software, every assessment uncovered active legacy authentication or insecure protocols: POP3/IMAP legacy email auth, cleartext FTP, outdated SSL/TLS versions, and even anonymous access to sensitive services. This legacy access often remains in use to keep older systems running or because they “still work”. Industry data and real‑world incidents show that credential‑stuffing and password‑spray campaigns frequently focus on these older paths precisely because they can bypass stronger controls. In a storm‑driven remote work surge, these forgotten services become easy routes into your environment.
3. Default and weak credentials on critical systems
In several environments, we also found critical databases and infrastructure accessible by factory‑default accounts or weak, never‑changed passwords. In one case, a core staff database was available via a known default password. Exploiting these weaknesses doesn’t require a complex attack. If the door is already open, it only takes someone willing to try. In hurricane season, when threat actors intensify scanning and test common credentials against exposed services, any remaining default or weak passwords are low‑hanging fruit; a direct path into your critical systems.
4. Remote access without Multifactor Authentication (MFA)
We also saw remote-access gateways and VPNs relying solely on usernames, passwords, and pre‑shared keys, without a second authentication factor. In an everyday scenario, that’s already a significant risk. But when a storm is approaching and the entire organisation shifts to remote work overnight, the number of login attempts and password resets spikes. A stolen or guessed credential on a non‑MFA gateway can give a cybercriminal the same level of access as a trusted insider. The very system you’re counting on to keep work moving becomes the point of attack.
5. Weak governance and incident response
In too many organisations, technical gaps were made worse by weak governance: no formal incident response plan, no clearly defined security roles during disruption, and no regular leadership-level review of cyber-risk.
On an ordinary day, that leads to slow decisions and reactive firefighting. During a hurricane, when time and attention are limited, it means no one is clearly authorised to shut down a vulnerable system, force password resets, or temporarily restrict risky remote access. Every delay gives hostile actors more room to turn a phishing email, a reused password, or an unpatched server into a larger incident.
These five gaps are concrete patterns we’ve seen across the Caribbean, and they show where to focus first if you want to reduce avoidable cyber risk before the next hurricane watch.
Action steps to secure your systems before the next hurricane
Here are 5 practical steps your IT and security teams can use to close these gaps this hurricane season.
- Identify unsupported and end‑of‑life systems in production, then agree which should be upgraded, replaced, or isolated before peak storm months. Focus on finance, operations, and customer services systems; the ones that hurt most if they go down mid-storm.
- Retire legacy authentication methods and insecure protocols on your terms, with migration and testing completed before a crisis forces the issue. List where older email auth, clear-text file transfer, and outdated encryption are still in use, and set a date to switch them off once safer alternatives are tested and proven.
- Eliminate default and weak credentials on critical systems, especially shared accounts and long‑standing admin passwords that turn simple probing into easy access. Run a short, focused campaign to identify high‑risk systems, rotate credentials, and reduce shared logins.
- Make MFA non‑negotiable for every remote access point, including VPNs, remote gateways, and critical cloud services. Confirm that every remote door into your systems requires a second factor.
- Strengthen governance around storm scenarios by naming who is on point, what they are authorised to do, and how decisions escalate if suspicious activity is detected. Agree in advance which systems can be shut down, what access can be restricted, and how fast security teams should respond when something doesn’t look right.
Don’t wait for the first hurricane watch
Don’t wait for the first Watch notice to take your cyber risk seriously. Hurricane season is a period of heightened exposure when attackers actively time phishing, fraud, and malware campaigns to the moments when your organisation is distracted.
These five gaps are the open vault door threat actors hope you carry into storm season.
The good news is that these risks aren’t beyond your control. You can act now with your IT and security teams to identify and close your most exposed gaps, tighten response plans, and cut through delays when hurricane disruption tests your plans.
Enter hurricane season with peace of mind knowing the doors attackers look to exploit are firmly closed. If you’re not sure where your vault door is still ajar, contact us for a free cybersecurity assessment before the next storm watch.
