RackTop Systems

Topic · 10 articles

Ransomware

Encryption attacks on file data, how they behave, and where they can be stopped.

Spans Threat Brief, Practitioner Guide, Cyberstorage Explainer and RackTop Perspective.

Threat BriefAugust 18, 2026

Six terabytes, allegedly: the hospital breach nobody can yet bound

A ransomware crew says it took six terabytes of the most sensitive records a health system holds. The health system says the claim is unverified. Weeks after the attack, both statements can still be true, and that gap is the leverage.

5 min read

Threat BriefAugust 12, 2026

Gunra ransomware: a six-agency warning that ends at your file shares

A joint advisory from the FBI, CISA, NSA, and international partners details how Gunra ransomware moves from a firewall CVE to file servers over SMB, stealing documents and databases before encrypting. The advisory is a case study in why NAS ransomware protection has to live at the storage layer.

5 min read

Practitioner GuideAugust 9, 2026

NAS ransomware protection: catch the attack by how it behaves

Real NAS ransomware protection is not a signature list or a nightly backup. It is user behavior analytics on every file operation, active defense that terminates a hostile session in under a second, and a cybervault that survives even administrative compromise.

5 min read

Threat BriefAugust 4, 2026

INC ransomware is stealing the identity layer, not just the perimeter

A pair of SonicWall SMA 1000 vulnerabilities gives attackers root on the VPN appliance, and INC ransomware is using that access to read passwords off the wire, copy live session databases, and lift MFA seeds. When credentials are stolen rather than bypassed, every login that follows is authentic, and only file activity still shows the attack.

6 min read

Threat BriefJuly 29, 2026

Nichirei and the second clock: shipments came back, the files did not

A ransomware crew claims it took internal files from Japanese frozen-food and logistics company Nichirei and reportedly posted samples as proof. Deliveries were restored within about a week. The company was still notifying people whose personal information may have been exposed.

5 min read

Cyberstorage ExplainerJuly 12, 2026

What Cyberstorage is, and why it exists

Cyberstorage builds security and recovery into the data storage layer itself. Here is what that means, the thirty-year assumption that made the category necessary, why Gartner named it in 2021, and how it differs from backup and traditional NAS.

7 min read

RackTop PerspectiveJuly 12, 2026

Backup is necessary. It is not a security control.

Immutable backups matter. But a recovery copy cannot see an attack, cannot stop exfiltration, and cannot tell you that data was stolen. Treating backup as security leaves the live data undefended.

5 min read

Cyberstorage ExplainerJuly 12, 2026

Ransomware protection at the storage layer: how it actually works

What real ransomware protection looks like at the layer attacks actually touch: the visibility, detection, policy, response, recovery, and evidence chain, explained link by link.

9 min read

Threat BriefJune 30, 2026

Extortion without encryption: the steal-and-leak business model

A growing share of extortion groups no longer bother encrypting anything. They steal files and threaten to publish them, a model that makes backups irrelevant and puts all the weight on stopping the theft itself.

2 min read

Practitioner GuideMay 20, 2026

Hardening NAS against ransomware: a practitioner checklist

A working checklist for storage and security teams: seven areas to verify on your file infrastructure so an attack on a share is detected and contained in progress, not just recovered from later.

5 min read

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Ransomware Analysis & Storage-Layer Defense | RackTop