Keep accepted telemetry intact. Prove it with math.
Yeti compresses connected, accepted telemetry without sampling its retained representation and attaches a cryptographic checksum to every retained chunk. Records keep lineage to those chunks so investigators can verify what was stored.
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.
Vendor-run measurements; corpus, method, comparison boundary, and reproduction path are published on the benchmarks page. Results are not third-party certification and must be reproduced against the intended workload.
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.
Connected, accepted telemetry remains queryable for the configured retention window.
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.
Retained access evidence can support audit controls; HIPAA compliance and any BAA remain deployment and contract responsibilities.
Log events, protect audit information, retain for the defined period.
Accepted records map to integrity-checked chunks retained for the configured 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 accepted telemetry in retained chunks and verifies each chunk by round-trip checksum.
Auditor: “Where are the rest of the events? What was in them?” The answer is you don’t know — they were deleted upstream.
Evidence result: the retained bytes match their integrity record. The deploying organization still owns control design, scope, operating evidence, and the auditor’s conclusion.
These are the audits you face, and what lossless retention contributes to each — not certifications Sasquatch holds. For our own attestations, see trust.sasquatchlabs.io.
Every security event captured, every privileged action traceable — across every microservice, every day.
Complete PHI access trails for your audit. No gaps, no summarization — the original records, not a sampled approximation.
Tamper-evident records across the cardholder data environment. Every authorization and admin action intact.
Connected, accepted telemetry remains available for the configured continuous-monitoring window.
Every sealed retained chunk must pass the same round-trip rule.
SHA-256 of each retained chunk’s original bytes equals SHA-256 after decompression. Records retain lineage to verified chunks; a mismatch is rejected instead of being represented as verified evidence.
Lossless retention, in the cloud you control.
Audit-grade integrity is only half of it. The other half is where the data lives.