Physical and Wi-Fi penetration testing checks whether someone can gain unauthorized entry to a company's premises or wireless network and, from there, reach systems and data. It tests the assumption behind much security investment that the attacker is outside.
Many companies invest in digital protection while paying little attention to physical access and wireless signal reach.
Why physical access still matters
Inside the building, an attacker finds shortcuts that a remote attacker does not have: an active network port in an empty meeting room, an unlocked computer, a badge that opens more doors than it should, or a guest network that communicates with the corporate network.
Wireless networks extend the perimeter to the parking lot, sidewalk, and neighboring building. Anyone within signal range can attempt access without entering the office.
What is tested
At the entrance, the test checks whether someone can tailgate an employee through the turnstile, pass reception using a plausible pretext, use service entrances, and clone badges. Once inside, it checks active network ports in common areas, unlocked workstations, documents left on desks, unsecured technical rooms, and devices someone might connect without thinking, such as a USB drive left in a hallway.
For wireless networks, testing evaluates whether the guest network is truly isolated, whether the corporate network has used the same shared password for years, whether rogue access points can capture credentials, and which connected devices nobody has inventoried, such as printers, cameras, and TVs.
How a rigorous test is conducted
Physical testing involves people, premises security, and sometimes the police. Preparation therefore matters as much as execution:
- Formal written authorization: signed by someone authorized to approve it, with a letter to present if challenged.
- Clear scope: addresses, floors, and prohibited actions, such as forcing locks or damaging equipment.
- Available point of contact: to resolve an encounter with security before it becomes an incident.
- Evidence of every step: photos, access logs, and proof of what was reached on the network.
The report shows where the tester entered, what they found, and how far they got, with remediation for each point. Only the sponsor and those who must authorize the test know about it, so it measures real behavior.
What to fix after the test
The most common fixes are disabling or isolating network ports in shared areas, implementing network access control for devices the company does not own, and properly segregating the guest network. Culture matters too: approaching an unfamiliar person in the hallway needs to be normal.
The test makes sense for offices, stores, factories, distribution centers, and data centers, even when some teams work remotely, because fewer people on site means fewer people to notice someone who should not be there.
Physical and wireless network penetration testing at Vultus
Vultus conducts physical and Wi-Fi penetration tests with formal authorization, documented scope, and evidence from every stage. Explore the Vultus attack simulations and penetration testing and read about social engineering testing.
