In 2025, data breaches hit Baltimore Country Club and the California Golf Club of San Francisco, exposing sensitive member data including financial information. If you manage a club, this matters: attackers have learned that clubs hold wealthy members’ data behind thinner defenses than banks.
Below are the seven IT mistakes behind most club breaches, with a fix for each.
Why are clubs attractive targets for hackers?
Clubs combine high-value member data with small IT teams, which makes them efficient targets. A membership database holds names, home addresses, payment details, and sometimes Social Security numbers of affluent households. Few clubs have a dedicated security specialist watching over it.
The attack rarely starts with sophisticated code. According to the Verizon 2026 Data Breach Investigations Report, 62% of breaches involve the human element, such as phishing or stolen credentials. In other words, most breaches start with a person, not a firewall.
The 7 IT mistakes we see most often
1. No Multi-Factor Authentication on email and admin accounts
A stolen password should not be enough to get into your club’s systems, yet at many clubs it still is. Email accounts of GMs and controllers are prime targets because they approve payments and hold member correspondence. Once inside, an attacker can quietly redirect vendor payments or export the member roster.
The fix: turn on MFA for email, the membership system, and every admin account. It is free in Microsoft 365 and Google Workspace and takes an afternoon to roll out.
2. Shared logins among staff
When five servers use the same POS login, you have no idea who did what. Shared credentials get written on sticky notes, passed to seasonal hires, and never changed when someone leaves. If a breach happens, the investigation hits a wall on day one.
The fix: individual accounts for every employee, with access limited to what their role needs. Disable accounts the same day a person leaves.
3. Unpatched systems and end-of-life hardware
That Windows Server in the back office that “still works fine” is often the open door. Software past its end-of-life date stops receiving security patches, and attackers scan the internet for exactly these machines.
Clubs tend to stretch hardware budgets, so outdated systems linger for years.
The fix: inventory every device and system, note which ones no longer receive updates, and plan replacements. Turn on automatic updates everywhere else.
4. No security training for staff
Your team can be your strongest defense or your weakest point, and the difference is training. Club staff are hospitality professionals, trained to be helpful and responsive. That is precisely the instinct phishing exploits, especially during seasonal turnover when new hires don’t yet know what a normal request looks like.
The fix: short, regular training instead of an annual lecture. A 15-minute session each quarter plus simulated phishing tests changes behavior more than any policy document.
5. One flat network for everything
Member Wi-Fi should never sit on the same network as your accounting system. It’s one of the most common IT mistakes. On a flat network, a compromised laptop in the lounge can reach the POS, the membership database, and payroll. Segmentation contains an incident before it becomes a breach.
The fix: separate networks for members and guests, staff operations, and payment systems. Any competent IT partner can do this with your existing equipment.
6. Backups that nobody has tested
A backup you have never restored is a hope, not a plan. Ransomware groups now target backups first, because a club that cannot restore its data pays the ransom. Many clubs discover their backups are incomplete or corrupted only during an actual emergency.
The fix: follow the 3-2-1 rule (three copies, two media types, one offsite) and run a test restore at least twice a year. Put the test date on the calendar like a board meeting.
7. Unmanaged vendor access
Your tee sheet, POS, payroll, and HVAC vendors may all have remote access to your network, and each one is a potential entry point. The Country Club Enterprises breach showed how an industry supplier’s compromise can ripple across the clubs it serves. Most clubs have never listed who can reach their systems from outside.
The fix: keep a register of every vendor with access, limit each to the minimum needed, and require MFA on their accounts too. Review the list annually.
Quick reference: IT mistakes, risks, and fixes
What does a breach actually cost a club?
IT mistakes that lead to a breach cost clubs more than most budgets assume. IBM’s Cost of a Data Breach Report 2025 puts the U.S. average breach cost at $10.22 million. Clubs are smaller than the corporations behind that average, but the same report shows hospitality breach costs rising year over year, and detection still takes 241 days on average.
For a club, the heaviest cost is not the forensics invoice. It is the letter telling members their Social Security numbers were exposed. Clubs run on trust. A breach spends it.
How to check where your club stands
Start with five questions at your next leadership meeting:
- Does every staff account, including vendors, require MFA?
- Can you name everyone with access to the membership database?
- When did you last test a backup restore?
- Is member Wi-Fi separated from your operations network?
- Would your front desk recognize a phishing email impersonating you?
If any answer is “no” or “not sure,” you have found your starting point. None of these fixes requires a big budget. They require someone who knows clubs looking at your setup with fresh eyes.
Get a clear picture in one assessment
Club Support has spent 20+ years working exclusively with private clubs in the US and Canada, so we know where these gaps hide. Our IT and security assessment reviews the seven areas above and gives you a prioritized, plain-language action plan you can bring to your board.
Book an assessment and find out where your club stands before someone else does.
