Design and change review
A second look at network and security changes before they go live: new segments, firewall rule changes, VPN and remote access additions, and anything touching the security-system network.
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// FRACTIONAL SECURITY ARCHITECT · HANS STUDY · ONTARIO, CANADA
For a firm with an IT lead or an MSP already running day to day, but nobody senior enough to own segmentation, firewall policy, a security-system network, or the OT sitting beside it. This is a hands-on design and review retainer, not an executive seat. The work shows up in the firewall rule base and the switch configs, not just in a slide deck.
Most firms this size have someone capable of keeping the lights on. Patching happens, tickets get closed, and the MSP answers the phone. What's usually missing is a second set of senior eyes on the decisions that are expensive to get wrong: where a new VLAN gets drawn, whether a change to the firewall policy actually closes the gap it's meant to, and whether the integrator's proposed design for the camera network holds up once it's live.
A fractional CISO owns the program and reports to the board. This role sits a level below that, closer to the configuration itself, and it's built for firms that need the second role before they need the first.
A second look at network and security changes before they go live: new segments, firewall rule changes, VPN and remote access additions, and anything touching the security-system network.
A written baseline for switches, firewalls, servers, and the security-system network, so the MSP or IT lead has a standard to configure against instead of defaults.
Reviewing a Genetec or access control integrator's proposed design, checking the as-built against what was promised, and attending the calls where the technical decisions actually get made.
Not every month is review only. Some months the work is a firewall policy rewritten directly, a VLAN scheme implemented, or a segmentation project carried through to the switch configs.
When the gap is strategic, a written security program, board reporting, and compliance ownership, that's fractional CISO work. When the gap is day-to-day monitoring, patching, and maintenance on infrastructure that's already well designed, that's managed network and server support. This retainer sits between the two: senior design judgment applied to a network an IT lead or MSP is already operating, without taking over either of the other two jobs.
A scoping call covers what the environment looks like today and what size of retainer fits it.
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