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PHP2Shell: the critical PHP vulnerability and how to patch it
Black Shard
Black Shard

Build, defend, comply

Software, security and compliance, from one team.

A job in The Den, the practice system we built for Fox Valuations, shown with sample data: the pipeline from quote sent to paid.

The Den, built and run for Fox ValuationsShown with sample data

Read the case study

Patch the edge first.Guard every sign-in.Keep a backup offline.

The attacks in our advisories reach Australian firms through the same few doors: an exposed edge device, a stolen password, a backup server left on the network. The flaws behind them are often exploited before a fix ships. Our security monitoring has analysed more than 476 million security events since 1 Oct 2026.

Read the advisories

Recognition and credentials

Nominated twice on Awwwards, for our own site and for the Fox Valuations site we built. The CyberCert certificate and the Xero listing verify online; the panel records go out with our tender responses.

Also on the record

  • ISO/IEC 27001:2022 Lead Auditor
  • Built on Azure and Microsoft 365

Reports and whitepapers

Recognition by evidence: our own figures, charted.

Every report

The Black Shard Platform

Jetstone at the core. Practitioners who test, assure and respond around it. The engineering that builds and runs it.

The Black Shard Platform. Jetstone at the core. Around it, Detect and respond: Jetstone, 24/7 incident line, Breach remediation. Test and assure: Penetration testing, Essential Eight assessment, Microsoft 365 and Azure security review, SMB1001 readiness, ISO 27001 readiness, vCISO. Build and run: Software engineering, Cloud and AI infrastructure, Managed ICT, Hosting on Azure Australian regions. Practitioners: Security leadership and audit, Law and governance, Offensive testing, Compliance, Tenders and procurement.

Where Jetstone will run

  • Windows
  • macOS
  • Microsoft 365
  • Google Workspace

Built on and integrated with

  • Microsoft 365
  • Microsoft Azure
  • Microsoft Entra ID
  • Microsoft Intune
  • Microsoft Defender for Endpoint
  • Microsoft Teams
  • SharePoint
  • Xero
  • Cloudflare
  • Amazon Web Services
  • GitHub
  • Stripe
  • Twilio
  • Smokeball
  • InfoTrack
  • Medical Objects
  • Every platform we run

The scale behind every engagement.

The engineering and security work behind the software we build and run.

  • 476,663,655Security events analysed

    Analysed by our own security monitoring, the record our responders work from in an incident.

    Our security monitoring, since 1 Oct 2026

  • 4,620,462Lines of source code

    Written and maintained by our own team, across client systems and our own products.

    Non-blank lines in the repositories we own

  • 70,540Tests across our codebases

    Tests run before a release ships, so a change is checked before it reaches your people.

    Tests in our repositories

  • 35,088Commits in 2026

    Every change on record, so any line of a system traces back to who made it and why.

    Git history across our product repositories, since 1 Jan 2026

  • 3,523Pull requests merged

    Changes ship in small, reviewed steps, so each one is easy to check and to roll back.

    Merged on GitHub, since 1 Jan 2026

  • 1,660Deploys and releases shipped

    Deploys go into the production systems we run every week.

    Successful deploy and release runs, since 1 Jan 2026

Measured from our repositories and monitoring; last updated .

Jetstone

Software that will contain known threats before anyone opens the alert.

The console will fit a phone, and a Monday summary will cover the week. The waitlist is open now.

The Jetstone console fleet view: a health score, detections by day, open incidents and a device list, with sample data.
  • Three policy presets

    Watch, Guard and Lockdown, with guardrails that will never isolate more than half of a fleet.

  • Action on a published list

    It will end the process, quarantine the file, isolate the device or sign the user out.

  • Sign-in threat watch

    Impossible travel, MFA fatigue, malicious inbox rules and risky OAuth consents will be flagged.

  • Alerts you can read

    Each will say what happened, what Jetstone did and what is waiting on you, in plain English.

Solutions by industry

Software and security for the sectors we already build and run systems in.

From the newsroom

Releases from the firm, and advisories with the patched version and the first step.

Visit the newsroom

Under attack? Call the incident line.

24/7 incident line1800 370 270

Talk to us about a test, a tender or Jetstone.