Firewall Security Review
Firewall rules accumulate cruft over years — overly permissive rules, forgotten exceptions, risky any-any entries. We review your firewall configuration and ruleset to tighten access and shrink your attack surface.
Verified Solvex Specialist
Verified by SolvexDirect specialist contact for Solvex engagements
What this means. An authorized Solvex administrator registered and approved this exact public identity. What it does not. Solvex has not inspected the account on the platform, and this is not the platform's own verification.
Solvex specialists never ask for your passwords, recovery phrases, one-time codes, or payments to a personal account. Work, scope and invoices are agreed in writing through the official channels on this site.
Signed authorization required. This engagement is performed only against systems you own or are contractually authorized to have tested, under an agreed scope. See the responsible testing policy.
What's covered
- Firewall configuration and hardening review
- Ruleset analysis for overly permissive and redundant rules
- Segmentation and zone-policy assessment
- Change-management and logging review
- Best-practice and compliance alignment
- Prioritised rule-cleanup recommendations
What you receive
- Firewall review report with findings
- Rule-cleanup and hardening recommendations
- Segmentation improvement suggestions
- Executive summary
- Optional follow-up validation
Evidence and reporting
How the work is kept honest- Evidence, frozen at issuanceFindings tie to something observed. When the report is issued, the evidence behind it is frozen in the same transaction and cannot be edited afterwards.
- A signed reportAn Ed25519 signature covers both the report content and the delivered file. Alter a byte of either and verification fails.
- Signed scope firstTesting starts only after written scope and signed authorization for systems you own or are entitled to have tested.
Anyone holding a Solvex report can verify it publicly without seeing its contents.
Our boundaries
What this engagement does not do, stated before it starts.
- Only firewalls you own or manage
- Configuration provided by you or accessed with authorisation
- Implementation of changes handled by your team
- Point-in-time review of the configuration supplied
How this engagement runs
- 01
Intake
Tell us the system, the goal and the constraints. If the work is not a good fit, we say so before anyone is invoiced.
- 02
Scope and authorization
Written scope and signed authorization before anything is touched. Security testing runs only against systems you own or are contractually entitled to have tested.
- 03
Investigation or build
Specialists matched to the work. Findings are proven by hand — scanner output is a lead, never a finding.
- 04
Evidence
Every finding ties to something observed. When a report is issued, its evidence is frozen in the same transaction, so what backed the report cannot change afterwards.
- 05
Delivery
A signed report: an Ed25519 signature over both the content and the file, with a short verification reference you can read down a phone.
- 06
Verification and retest
Anyone holding the report can verify it publicly without seeing its contents. Fixes are retested as part of the engagement — “fixed” means we confirmed it.
Questions we are asked
- What do you need to review our firewall?
- A configuration export or read-only access to the firewall(s) and a network diagram if available. We can review most major vendors' platforms.
- Will you change our rules?
- We recommend; your team implements. That keeps you in control of change management. We prioritise the cleanup so the riskiest rules are addressed first.
- How many firewalls does the fixed price cover?
- The base price covers a single firewall configuration. We'll quote transparently for additional devices or complex multi-site rulesets.
Related services
Offensive / Testing
Internal Network Penetration Testing
Assume an attacker is already inside — a phished laptop, a rogue device, a malicious insider. We test how far they could get, showing you the lateral-movement paths and privilege escalations that turn one foothold into a full compromise.
Defense & MDR
Zero Trust Architecture Design
Move beyond the old castle-and-moat model to 'never trust, always verify'. We design a pragmatic Zero Trust architecture for your organisation — identity-centric, least-privilege and staged so it's achievable, not aspirational.
Cloud / DevSecOps
Cloud Configuration Review
A focused, expert review of your cloud account configuration against security best practice. We examine identity, storage, network and logging settings to find the risky defaults and drift that leave the door ajar.