Keep every byte. Prove it with math.
Cost pressure pushes every other stack to drop, sample, or summarize logs. Yeti keeps all of it, losslessly, and attaches a cryptographic checksum to every chunk. When an auditor or an investigator asks for the original record, it is still there and provably unchanged.
The savings come from compression, not from throwing data away.
The industry answer to a spiraling ingest bill is to drop the logs nobody searches. That is fine until the one incident where you needed them. Yeti takes the other path: keep everything and shrink it, with proof that the original is recoverable.
Nothing is sampled away
No filtering to hit a license tier, no deduplication, no AI summarization of the raw record. Every firewall, authentication, network, and host event is retained at full fidelity for the whole window.
SHA-256 on every chunk
The hash of the original bytes equals the hash of the decompressed bytes, checked as data flows. The compression path is byte-lossless by construction, not by policy.
Self-checked before it ships
The cold path decodes and compares every chunk against its input before sealing it to storage. If a chunk cannot reproduce its input exactly, it does not ship.
What fired is stored right next to why.
When a rule fires, the finding is written back as its own queryable event in the open OCSF schema and catalogued alongside the raw logs. The alert is not a pointer that can go stale. It is a durable record with the technique, the entity, and a link straight back to the exact events that triggered it.
An analyst, or the AI investigator, can pivot from a months-old alert to the original bytes underneath it, because nothing between the detection and the evidence was ever summarized away.
Every one of them asks for the complete, original record.
Read the control text and the pattern is the same: capture the events, keep them intact, protect them from tampering, and be able to produce them later. Lossless retention answers all four at once.
Detect and evaluate security events.
Every event captured and queryable, so monitoring works on the complete record.
Log all access to cardholder data, retain 12 months, protect logs from tampering.
Full-fidelity access trails, retained intact, tamper-evident by checksum.
Record and examine activity in systems that hold ePHI.
Complete PHI access trails. No gaps, no summarization, BAA satisfied byte for byte.
Log events, protect audit information, retain for the defined period.
Every event retained and integrity-protected for the full window.
Non-rewriteable, non-erasable records, retained for years.
An immutable, verifiable archive that lives in your own storage.
Electronic records that are attributable, original, and accurate.
Original bytes preserved and cryptographically attested, not reconstructed.
Yeti is built and aligned to support these controls. Certification and attestation are held by the deploying organization for its own environment.
Auditors don’t accept “approximately”.
Filtering, deduplication, and AI summarization all share the same fatal flaw: when the investigator, the auditor, or the court asks for the original record, it’s already been deleted in the name of cost savings. Sasquatch preserves every byte — and proves it with a cryptographic checksum on every event.
Auditor: “Where are the rest of the events? What was in them?” The answer is you don’t know — they were deleted upstream.
Auditor: “This is fine.” Original bytes, cryptographically attested. That’s the whole audit.
Every security event captured, every privileged action traceable — across every microservice, every day.
Complete PHI access trails. No gaps, no summarization. BAA obligations satisfied byte-for-byte.
Tamper-evident records across the cardholder data environment. Every authorization and admin action intact.
Full data fidelity across the authorization boundary. Every event available for the full continuous-monitoring window.
Every event. Every time. In the math, not the marketing.
SHA-256 of the original bytes equals SHA-256 of the decompressed bytes, checked on every event as it flows. Any deviation triggers an immediate alert — and has never happened in production.
Lossless retention, in the cloud you control.
Audit-grade integrity is only half of it. The other half is where the data lives.
