Spain is heading for a record tourist season, and most bars and hotels are still using the same network for guest wifi and their card machine.
August on the Costa Blanca. A packed terrace, a tourist with a phone in hand before ordering a beer: “Do you have wifi?” The waiter reads out the password that’s been taped to the till for the last three years. It’s the same one that runs the point-of-sale system, the card machine, the security camera if there is one.
Nobody thinks twice about it. Offering wifi is just good hospitality, like putting water on the table before anyone asks. And in summer, with the terrace full of people passing through, it feels even less important: they’re here for four hours, then they’re gone.
But that password doesn’t know the difference between the tourist sending a photo home and whoever sits down with a laptop two tables away. If they’re on the same network, they’re — in practice — in the same room as your business.
The mistake almost every business makes
Most bars, hotels and shops just use the router the operator supplied, straight out of the box. One network, one password, for everything: the wifi guests use and the equipment that runs the business. We see this every week — businesses that have been handing out the management wifi password for years as if it were a free courtesy, without realising that courtesy opens the door to wherever the card machine lives.
Why this matters more this summer
Spain keeps breaking tourist records, and each visitor arrives with two or three devices looking to connect to whatever they can find: phone, watch, tablet. More connections means more traffic, more people sharing the same network for more hours a day, and more chances for something to go wrong. It doesn’t need to be an attack aimed at your business — it only takes one connected laptop that’s already infected for the problem to slip into your network without anyone knocking on the door.
Let me translate that: separating them isn’t complicated
Separating the guest network from the business network works the same way as separating the stockroom from the shop floor: customers come in to buy, not to wander through the aisles where you keep the stock. It’s technically called a guest network (or a VLAN, on a larger setup), and most routers a bit newer than the one the operator handed you already have it built in. Guest wifi goes straight out to the internet and nowhere else; the till, the card machine and the internal systems run on their own, and the two never cross.
What you can do this week
Set up a separate network just for customers, distinct from the one your business equipment uses.
Change the guest wifi password now and then — it doesn’t need to be weekly, but it shouldn’t have stayed the same for three years either.
Turn on a welcome portal, if your router supports it, asking guests to accept terms before browsing. It’s an extra layer, and it tells customers someone’s actually looking after that network.
Make sure the till and card machine never share a router with the guest wifi, even if they’re in the same room.
None of this needs a big budget or technical know-how. It just needs you to look again at something that’s probably been left untouched for years because “it’s always worked this way.” And the question worth asking before peak season ends is this: is the wifi you give your customers separated from what runs your business, or is it all going through the same door?
Not a sales pitch — just so you know: if you’re not sure how your business network is set up, at Netteleco we’ll check it for you, no obligation. Get in touch.
