Restaurants, hotels, and event venues across the Houston metro have IT footprints that look very different from a typical professional services firm: POS systems, kitchen displays, reservation platforms, guest Wi-Fi, payment processing, security cameras, sometimes property management software. The complexity is real. So are the predictable mistakes we see again and again.
Mistake 1: putting the guest Wi-Fi on the same network as the POS
This is the single most common — and most dangerous — pattern we see in Houston restaurants and small hotels. Guest Wi-Fi traffic shares the same physical network as point-of-sale systems, back-office computers, and security cameras. A compromised guest device can probe everything else on the network.
PCI-DSS (the standard you operate under if you take credit cards) explicitly prohibits this. If you’re breached and an investigator finds your guest Wi-Fi shared a network with your POS, your card-brand penalties stack on top of any actual losses.
Fix: separate VLANs for guest, POS, back-office, and IoT (cameras / smart thermostats). Most modern business-grade firewalls do this cleanly.
Mistake 2: never updating the POS
POS terminals are often forgotten in patch cycles. They sit in the corner, they work, no one wants to touch them. Meanwhile they’re running unsupported versions of Windows or Android with known vulnerabilities. Card-skimming malware targets exactly these systems.
Fix: POS systems need the same patch cadence as everything else. If your vendor doesn’t support patching, plan a replacement.
Mistake 3: no backup of reservation / booking data
Reservation platforms, online booking systems, loyalty databases — most are SaaS. Owners assume the vendor backs it up. They do, for their own platform survival. But if you accidentally delete or corrupt your booking data, recovery depends entirely on the vendor’s restore policy. Most are short.
Fix: for any SaaS system that holds revenue-generating data, ask the vendor exactly what their restore SLA is. If it’s not what you need, take your own periodic exports.
Mistake 4: weak or shared logins on POS and back-office systems
One shared password posted by the register so everyone can log in. One owner login with admin rights for everything. No record of who did what when. When a refund pattern looks suspicious or a drawer comes up short, you have no audit trail.
Fix: individual user accounts on every system. Manager-level controls separated from server / cashier. Logs retained.
Mistake 5: ignoring the security cameras
NVRs and cloud-camera systems that came with the building have often never been updated. Their admin passwords are often still "admin / admin." Attackers scan for these constantly because they’re easy footholds into networks.
Fix: change every default password. Put cameras on their own VLAN. Update firmware. Disable any feature you’re not using (especially remote access if you don’t need it).
The compounding cost
The 2025 attack patterns for hospitality were brutal: a Houston-area boutique hotel had a guest-Wi-Fi-to-POS breach that resulted in mid-six-figure card brand penalties and replacement costs. A small restaurant group lost a week of reservations data with no usable backup. A coffee shop chain had cameras hijacked into a botnet, which got their entire IP block flagged and disrupted their cloud applications.
None of these required sophisticated attackers. Each required one of the mistakes above to be in place.
What to do this quarter
If you operate hospitality in Houston, the four highest-impact actions:
- Have someone audit your network segmentation. If guest Wi-Fi and POS share anything, fix it.
- Change every default password on POS, cameras, and network equipment.
- Confirm you have backups of any SaaS booking/reservation/loyalty data you can’t recreate.
- Get someone competent reviewing your PCI-DSS posture.
We do hospitality network assessments as part of our IT consulting work. Book a discovery call if you’d like one.
Aspendora Technologies provides managed IT services and cybersecurity for Houston-area hospitality, food service, and retail businesses since 2010.