Blog
Field notes on asset visibility.
Practical writing on inventories, coverage, correlation and compliance evidence, from the team building Lumen Edge.
Coverage · Security
Why your EDR coverage number is probably wrong
Vendor consoles measure coverage against their own list of agents. Here is how to measure it against everything that actually exists.
September 22, 2026 · 5 min read
Read articleExplainable correlation: how to decide two records are the same machine
Asset correlation is a chain of evidence, not a black box. Here is how ordered match rules, conflict guards and human overrides keep an inventory honest.
September 8, 2026 · 5 min read
NIS2, DORA and ISO 27001 all start with an asset inventory: what auditors actually ask for
A practical walk through what ISO 27001, NIS2, DORA, CIS Controls and NIST CSF require of an asset inventory, and the evidence that tends to satisfy an auditor.
August 25, 2026 · 5 min read
Decommissioning without guesswork
Why "last seen more than 90 days ago" is a poor test for a retired asset, and how per-source evidence makes decommissioning safe and auditable.
August 11, 2026 · 4 min read