Yes, in the same sense that any internet-connected device can be attacked — a smart charger has Wi-Fi, an app account and software, and each is a surface. But the realistic risks are account and data risks: someone getting into your app account, your home network, or your charging data. The safety cut-offs that protect the car and the wiring work locally in the charger and the car, and do not depend on the cloud.
Key Takeaways
- A smart charger’s realistic risks are account access and data, not the car’s battery.
- Safety cut-offs are local and keep working with or without a connection.
- A unique app password, automatic updates and a secured home network cover most of the risk.
What an Attacker Would Actually Be After
There is no prize inside a home charger comparable to a bank account. The plausible targets, in order, look like this:
| Target | What it could give | How likely it is to matter |
|---|---|---|
| Your app account | Starting or stopping sessions, seeing your charging history | The main risk; stopped by a strong, unique password |
| Your home network | A foothold from any weakly secured smart device | Generic smart-home risk, not specific to chargers |
| Charger settings | Nuisance changes to schedules or current limits | Annoying, not dangerous; safety limits are built in |
| The car’s battery | Nothing directly | The car’s own charger controls the battery; the wall unit only offers current |
As how smart EV chargers work explains, the wall unit signals how much current the car may draw and watches for faults; the car decides the rest. That split is why a hacked app is not a path to the battery.
What Already Protects You
- Local safety design. Connection checks, current signalling and ground-fault monitoring happen in the charger itself, whether or not it is online.
- Security rules in some markets. Great Britain’s Smart Charge Points Regulations 2021 include security requirements for home and workplace chargers sold there — the clearest written example of charger security being regulated.
- Access control on shared units. RFID cards and app accounts decide who can start a session on workplace and public posts.
- Software updates. Connected chargers can receive fixes remotely, which is a security benefit basic units do not have — provided updates are switched on.
Your Five-Minute Security Checklist
- Use a unique password for the charger app — not your email or banking password reused.
- Turn on automatic firmware updates in the app, and install offered updates.
- Keep your home Wi-Fi on a strong password; put the charger on a guest network if your router offers one and the charger still works there.
- Treat RFID cards like keys: report a lost card so it can be removed from the unit.
- When you sell the charger or move house, remove your account from it and hand over access cleanly.
Connected Chargers From EVDANCE
The EV-ACT3204PE 22 kW wallbox combines a tethered Type 2 cable with RFID and app control. For shared sites, the EV-AC03201T dual-connector station adds OCPP 1.6J, so sessions run through a managed network rather than an open post. Whether a connected model suits you at all is covered in smart vs non-smart EV chargers.
Frequently Asked Questions
Can a hacker damage my car’s battery through the charger?
There is no direct path. The car’s onboard charger controls how the battery charges, and the wall unit can only offer current within its rating. An account intruder could start, stop or reschedule a session — disruptive, but not battery damage.
Should I just disconnect my charger from Wi-Fi?
You can, and basic charging usually continues, but you lose app scheduling, session data and remote updates — including security fixes. Most owners are better served by a strong password and updates left on. See whether home EV chargers need Wi-Fi.
Do the British security rules apply to my charger in the US?
No. They govern chargers sold in Great Britain. They are still a useful benchmark anywhere: if a model meets a regulated market’s security requirements, that says something about how seriously its maker treats updates and access control.
Related Reading
- How Do Smart EV Chargers Work?
- Smart vs Non-Smart EV Chargers: What Installers Actually Want
- Do Home EV Chargers Need Wi-Fi?
