Maritime cyber risk management: a free vulnerability database for ships and ports, and the IMO/IACS rules behind it
Blue Initiative, backed by ClassNK, Bureau Veritas and MTS-ISAC, indexes around 30,000 vulnerabilities that can reach ships and ports in a free database. A maritime cyber risk management guide with an IMO and IACS E26/E27 table, Turkey port data and a checklist.
A modern container ship's navigation, engine room and cargo systems are computer networks. Tracking their vulnerabilities is hard, though: national vulnerability databases carry no maritime tags. Blue Initiative, announced on October 27 as reported by SecurityWeek, aims to fill that gap with a single free database of vulnerabilities that affect ships and ports [1][2]. This guide covers the new tool, the IMO and IACS rules behind maritime cyber risk management, and practical steps for shipping and logistics companies.
What is Blue Initiative and who runs it?
Blue Initiative is a joint effort by cybersecurity firm Cydome, Japanese classification society ClassNK, testing and certification company Bureau Veritas, the Maritime Transportation System ISAC (MTS-ISAC) and Rakuten Maritime [1]. The site is run by Cydome in collaboration with the partners [3]. ClassNK provides inspection and certification services to about 20% of the global merchant fleet [3].
The project starts from a simple observation: CISA's ICS advisories include maritime vendors, but among 200 others, with nothing to tell a fleet manager which ones are on their ships [3].
| Indicator | Value (October 28, 2026) | Source |
|---|---|---|
| Total entries indexed | 29,552 | [2] |
| Critical (CVSS 9.0-10.0) | 2,008 | [2] |
| In CISA KEV (known exploited) | 588 | [2] |
| Flaws in products built specifically for ships and ports | 37 | [1][2] |
| Scored entries published in the last 90 days | 5,179 | [2] |
| License | CC BY 4.0 (reuse with attribution) | [3] |
Quotable stat: Of 29,552 vulnerabilities that Blue Initiative maps to ships and ports, 588 are in CISA's Known Exploited Vulnerabilities catalog [2].
One caveat: most entries are selected and classified automatically from CISA advisories and the KEV catalog, and only a small number carry analyst notes [1][3]. Treat the database as a prioritization filter, not a risk assessment, until you match it against your own inventory. It is also worth noting that the site is run by a security vendor [3].
The rules: what IMO and IACS require
Maritime cyber security is no longer just good practice; it is a compliance topic:
| Instrument | Scope | What it asks | Source |
|---|---|---|---|
| IMO Resolution MSC.428(98) | Safety management systems (ISM Code) | Cyber risks addressed in safety management systems no later than the first annual verification of the Document of Compliance after January 1, 2021 | [4] |
| IMO MSC-FAL.1/Circ.3/Rev.4 | All maritime stakeholders | High-level guidelines on maritime cyber risk management and functional elements | [4] |
| IACS UR E26 | The ship as a whole | Minimum cyber resilience requirements for new ships | [5] |
| IACS UR E27 | On-board systems and equipment | Cyber resilience of computer-based systems | [5] |
According to ClassNK, IACS UR E26/E27 apply to ships contracted for construction on or after July 1, 2024 [5]. IMO also points to the industry Guidelines on Cyber Security on board Ships, ISO/IEC 27001 and the NIST Framework as further references [4].
Why it matters for Turkey
According to Turkey's Ministry of Transport and Infrastructure, Turkish ports handled 412.1 million tonnes of cargo in the first nine months of 2026, and container handling rose 2.7% to 10.77 million TEU [6]. At that volume, even a few hours of downtime in a port or ship system ripples from exporters to hauliers.
We did not find public Turkey-specific maritime cyber incident statistics. But most systems used by the sector come from global vendors, so the flaws Blue Initiative indexes apply to Turkish fleets and terminals as well.
We covered similar risks in the warehouse in barcode scanner security and in AI freight audit. For control systems on ships and terminals, the principles from our OT vulnerability management best practices post apply.
Ship and terminal systems: where to start
| System group | Examples | Priority control |
|---|---|---|
| Bridge and navigation | ECDIS, radar, AIS | Software versions, USB / removable media control |
| Machinery and automation | Alarm and monitoring, power management | Network separation, remote service access |
| Cargo and terminal | Cargo management, terminal operating system | Identity and access management, backups |
| Ship's business IT | Email, office networks | Phishing awareness, patch routine |
| Communications | Satellite links | Default passwords, access restriction |
System groups are our examples, following Blue Initiative's approach of classifying entries by shipboard system [2][3].
Maritime cyber risk management checklist (10 points)
- Inventory computer-based systems on ships and terminals (vendor, product, version) [5]
- Search the inventory in Blue Initiative and flag matching entries [2]
- Fix known exploited (CISA KEV) flaws first [2]
- Subscribe to Blue Initiative alerts for new critical entries [2]
- Confirm cyber risks are addressed in your ISM safety management system [4]
- Clarify IACS UR E26/E27 compliance with the yard in new-build contracts [5]
- Ask equipment suppliers for UR E27 type approval certificates [5]
- Log remote service access and open it only when needed
- Plan cyber awareness training for crews and shore staff [5]
- Prepare incident response and manual operation plans for ship and port
Frequently asked questions
What is maritime cyber risk management?
IMO defines it as identifying, analyzing, assessing and communicating cyber-related risk and accepting, avoiding, transferring or mitigating it to an acceptable level [4].
Is Blue Initiative free?
Yes. The site is publicly accessible and the index is published under CC BY 4.0 for reuse with attribution [3].
Which ships do IACS E26 and E27 cover?
According to ClassNK, ships contracted for construction on or after July 1, 2024. E26 covers the ship as a whole, E27 on-board systems and equipment [5].
Where do Blue Initiative entries come from?
Mostly automatically from CISA ICS advisories and the KEV catalog; a small number are written by hand [1][3].
How much cargo do Turkish ports handle?
412.1 million tonnes and 10.77 million TEU in the first nine months of 2026, according to the ministry [6].
References
- SecurityWeek, Eduard Kovacs, "Maritime Coalition Launches Free Vulnerability Database for Ship and Port Systems", October 27, 2026. https://www.securityweek.com/maritime-coalition-launches-free-vulnerability-database-for-ship-and-port-systems/ (Accessed: October 28, 2026)
- Blue Initiative, home page and dashboard. https://www.blue-initiative.org/ (Accessed: October 28, 2026)
- Blue Initiative, "About Blue Initiative". https://www.blue-initiative.org/about (Accessed: October 28, 2026)
- International Maritime Organization, "Maritime cyber risk". https://www.imo.org/en/OurWork/Security/Pages/Cyber-security.aspx (Accessed: October 28, 2026)
- ClassNK, "IACS UR E26/27". https://www.classnk.com/hp/en/activities/cybersecurity/ur-e26e27.html (Accessed: October 28, 2026)
- Anadolu Agency, Mertkan Oruç, "Deniz ticaretinde 9 ayda 412,1 milyon ton yük elleçlendi" (in Turkish), October 13, 2026. https://aa.com.tr/tr/ekonomi/deniz-ticaretinde-9-ayda-412-1-milyon-ton-yuk-elleclendi/4087554 (Accessed: October 28, 2026)
