List Of Marine Security Advisories by Date

Edition
09/2026
Last updated

18 September 2026

Marine Security Advisory 09/2026

LISCR Marine Security Advisories by Date

Security Advisory

Subject

Emailed & Published

10/2022 Rev.1

Dated October 08, 2026

Security situation in the Black Sea and the Azov Sea

(Supersedes Marine Security Advisory 10/2022)

October 08, 2026

02/2020 Rev.2

Dated September 18, 2026

Maritime Cyber Risk Management in Safety Management

Systems

September 18, 2026

09/2023-Rev.14

Dated September 02, 2026

Security Situation in the Red Sea and Gulf of Aden

(Supersedes Marine Security Advisory 08/2023)

September 02, 2026

02/2026

Dated June 15, 2026

U.S. Coast Guard Revises Security Advisory Regarding Ports Not Maintaining Effective Anti-Terrorism Measures

(Supersedes Marine Security Advisory 01/2025)

June 15, 2026

03/2025/Rev.4

Dated March 01, 2026

Security situation in the Arabian Gulf, Straits of Hormuz, Gulf of Oman and North Arabian Sea

(Supersedes Marine Security Advisory 03/2025/Rev.3)

March 01, 2026

09/2023-Rev.13

Dated February 28, 2026

Security Situation in the Red Sea, Gulf of Aden and North Arabian Sea

(Supersedes Marine Security Advisory 09/2023/Rev.12)

February 28, 2026

03/2025/Rev.3

Dated February 28, 2026

Security situation in the Arabian Gulf, Straits of Hormuz, Gulf of Oman and North Arabian Sea

Superseded

(Supersedes Marine Security Advisory 03/2025/Rev.2)

February 28, 2026

01/2026

Dated January 08, 2026

Security Situation in the Caribbean Sea

January 08, 2026

09/2023/Rev.12

Dated December 22, 2025

Security Situation in the Red Sea and Gulf of Aden

Superseded by 09/2023-Rev. 13/Archived

(Supersedes Marine Security Advisory 08/2023)

December 22, 2025

04/2025

Dated August 27, 2025

Turkish Maritime Authorities’ Implementation Principles regarding Maritime Transportation Between Israeli-Flagged

and Affiliated Vessels and Türkiye

August 27, 2025

02/2020 Rev.1

Dated August 11, 2025

Maritime Cyber Risk Management in Safety Management Systems

Supersedes Marine Security Advisory 02/2020

August 11, 2025

As of October 2026

LISCR, LLC

22980 Indian Creek Drive

Suite 200

Dulles, VA 20166

Phone: + 703-790-3434

Fax: + 703-790-5655 Email: info@liscr.com www.liscr.com

09/2023/Rev.11 Dated July 14, 2025

Security Situation in the Red Sea, Gulf of Aden and Arabian Sea

Superseded by 09/2023-Rev. 12/Archived

(Supersedes Marine Security Advisory 08/2023 and Supplements Revokes Marine Security Advisory 02/2018)

July 14, 2025

09/2023/Rev.10 Dated July 08, 2025

Security Situation in the Red Sea, Gulf of Aden and Arabian Sea

Superseded by 09/2023-Rev. 11/Archived

(Supersedes Marine Security Advisory 08/2023 and Supplements Marine Security Advisory 01/2023/Rev.1)

July 08, 2025

03/2025/Rev.2

Dated June 25, 2025

Security situation in the Arabian Gulf, Straits of Hormuz and Gulf of Oman

Superseded by 03/2025/Rev.3/Archived

(Supersedes Marine Security Bulletin 04/2025)

(Supersedes Marine Security Advisory – 03/2025/Rev.1)

June 25, 2025

03/2025/Rev.1

Dated June 23, 2025

Security situation in the Arabian Gulf, Straits of Hormuz and Gulf of Oman

(Superseded by Marine Security Advisory – 03/2025/Rev.2)

(Supersedes Marine Security Bulletin 04/2025)

(Supersedes Marine Security Advisory – 03/2025)

June 23, 2025

03/2025

Dated June 17, 2025

Security situation in the Arabian Gulf, Straits of Hormuz and Gulf of Oman

(Superseded by Marine Security Advisory – 03/2025/Rev.1)

(Supersedes Marine Security Bulletin 04/2025)

June 17, 2025

09/2023/Rev.9

Dated May 20, 2025

Security Situation in the Red Sea, Gulf of Aden and Arabian Sea

Superseded by 09/2023-Rev. 10/Archived

(Supersedes Marine Security Advisory 08/2023 and Supplements Marine Security Advisory 01/2023/Rev.1)

May 20, 2025

02/2025

Dated May 08, 2025

Security Situation in the Northeastern Arabian Sea

May 08, 2025

09/2023/Rev.8

Dated May 05, 2025

Security Situation in the Red Sea, Gulf of Aden and Arabian Sea

Superseded by 09/2023-Rev. 9/Archived

(Supersedes Marine Security Advisory 08/2023 and Supplements Marine Security Advisory 01/2023/Rev.1)

May 05, 2025

06/2023/Rev.1

Dated May 05, 2025

Advisory for Liberian flagged vessels transiting waters from the Indian Ocean to North Asia to North Australia

This Security Advisory supersedes Marine Security Advisories 06/2023

May 05, 2025

01/2023/Rev.1

Dated May 05, 2025

Removal of the Indian Ocean High Risk Area (HRA)

(This Security Advisory supersedes Marine Security Advisories 01/2023, 11/2022 and 03/2021)

May 05, 2025

01/2025

Dated March 27, 2025

U.S. Coast Guard Revises Security Advisory Regarding Ports Not Maintaining Effective Anti-Terrorism Measures

Superseded by 02/2026

Supersedes Marine Security Advisory 02/2023

March 27, 2025

09/2023-Rev. 7

Dated March 12, 2025

Security Situation in the Red Sea, Gulf of Aden and Arabian Sea

Superseded by 09/2023-Rev. 8/Archived

Supersedes Marine Security Advisory 09/2023-Rev. 6

Supersedes Marine Security Advisory 08/2023 and Supplements Marine Security

Advisory 01/2023)

March 12, 2025

09/2023-Rev. 6

Dated October 16, 2024

Security Situation in the Red Sea, Gulf of Aden and Arabian Sea

Superseded by 09/2023-Rev. 7 /Archived

Supersedes Marine Security Advisory 09/2023-Rev. 5

and supplements Marine Security Advisory 01/2023

October 16, 2024

09/2023-Rev. 5

Dated February 12, 2024

Security Situation in the Red Sea, Gulf of Aden and Arabian Sea

Superseded by 09/2023-Rev. 6/Archived

Supersedes Marine Security Advisory 08/2023 and supplements Marine Security

Advisory 01/2023

February 12, 2024

09/2023-Rev. 4

Dated January 22, 2024

Security Situation in the Red Sea, Gulf of Aden and Arabian Sea

Superseded by 09/2023-Rev. 5/Archived

Supersedes Marine Security Advisory 08/2023 and supplements Marine Security

Advisory 01/2023

January 22, 2024

08/2023

Dated December 15, 2023

Security Situation in the Southern Red Sea and Gulf of Aden

Superseded by Marine Security Advisory 09/2023

December 15, 2023

07/2023

Dated December 08, 2023

Security Situation in Israel Ports and Territorial Waters

Supersedes Marine Security Advisory 05/2023

Supersedes Marine Security Advisory 08/2023 and supplements Marine Security

Advisory 01/2023

December 08, 2023

06/2023

Dated October 19, 2023

Advisory for Liberian flagged vessels transiting waters from the Indian Ocean to North Asia to North Australia

Superseded by Marine Security Advisory 06/2023/Rev.1/Archived

October 19, 2023

05/2023

Dated October 13, 2023

Security Situation in Israel Ports and Territorial Waters

Superseded by Marine Security Advisory 07/2023

October 13, 2023

04/2023

Dated October 03, 2023

Usage of Thuraya, Iridium and other such Satellite Communication Equipment in Indian Waters.

Supersedes Marine Operations Note 03/2012

October 03, 2023

03/2023

Dated June 01, 2023

Gulf of Guinea-Piracy/Armed Robbery/Kidnapping for Ransom, and Reporting of Incidents

Supersedes Marine Security Advisory 01/2022

June 01, 2023

02/2023 Dated April 11, 2023

U.S. Coast Guard Revises Security Advisory Regarding

Ports Not Maintaining Effective Anti-Terrorism

Measures

Superseded by Marine Security Advisory 01/2025 Supersedes Marine Security Advisory 01/2018

April 11, 2023

01/2023

Dated February 09, 2023

Removal of the Indian Ocean High Risk Area (HRA)

Superseded by 01/2023-Rev. 1/Archived

Supplemented by Marine Security Advisory 09/2023-Rev. 7

Supersedes Marine Security Advisories 11/2022 and 03/2021

February 09, 2023

11/2022

Dated January 03, 2022

Removal of the Indian Ocean High Risk Area (HRA)

Superseded by Marine Security Advisory 01/2023

January 03, 2022

10/2022

Dated August 10, 2022

Security Situation in The Black Sea and The Azov Sea

Superseded by 10/2022-Rev. 1

Supersedes Marine Security Advisory 08/2022

August 10, 2022

09/2022

Dated June 02, 2022

Use of Private Marine Security Companies (PMSC) Providing

Privately Contracted Armed and Unarmed Security Personnel Onboard on Liberian Registered Ships.

This Advisory Supersedes Marine Security Advisory03/2011

June 02, 2022

08/2022

Dated May 26, 2022

Security Situation in The Black Sea and The Azov Sea

Superseded by Marine Security Advisory 10/2022

Supersedes Marine Security Advisory 07/2022

May 26, 2022

07/2022 Dated April 5, 2022

Security Situation in The Black Sea and The Azov Sea

Superseded by Marine Security Advisory 08/2022

April 5, 2022

06/2022

Dated March 03, 2022

Security situation in the Black Sea and the Azov Sea

Superseded by Marine Security Advisory 07/2022

March 03, 2022

05/2022

March 02, 2022

Security situation in the Black Sea and the Azov Sea

Superseded by Marine Security Advisory 06/2022

March 02, 2022

04/2022

February 28, 2022

Security situation in the Black Sea and the Azov Sea

Superseded by Marine Security Advisory 05/2022

February 28. 2022

03/2022

Dated February 25, 2022

Security situation in the Black Sea and the Azov Sea

Superseded by Marine Security Advisory 04/2022

February 25, 2022

02/2022

Dated February 24, 2022

Security situation in the Black Sea and the Azov Sea Superseded by Marine Security Advisory 03/2022

February 24, 2022

01/2022

Dated January 26, 2022

Gulf of Guinea-Piracy/Armed Robbery/Kidnapping for

Ransom, and Reporting of Incidents

Superseded by Marine Security Advisory 03/2023

January 26, 2022

04/2021

Dated December 21, 2021

Gulf of Guinea-Piracy/Armed Robbery/Kidnapping for Ransom, and Reporting of Incidents

This Security Advisory Supplements Security Advisory 01/2021

December 21, 2021

03/2021

Dated September 3, 2021

Security Level II - For Vessels Transiting the HRA Southern Red

Sea, Gulf of Aden, Indian Ocean and Arabian Sea

Superseded by Marine Security Advisory 01/2023

This Security Advisory Supplements Marine Security Advisory 01/2019

September 3, 2021

02/2021 Dated April

29, 2021

Interim Guidance on the use of Privately Contracted Armed Security Personnel on Board Ships in the Gulf of Guinea

April 29, 2021

01/2021

Dated January 14, 2021

Gulf of Guinea-Piracy/Armed Robbery/Kidnapping for Ransom, and Reporting of Incidents

Superseded by Marine Security Advisory 04/2021

This Advisory supersedes Marine Security Advisory 05/2016 & 04/2017

January 14, 2021

02/2020

Dated December 29, 2020

Maritime Cyber Risk Management in Safety Management Systems

Superseded by Marine Security Advisory 02/2020 Rev.1

December 29, 2020

01/2020

Dated July 23. 2020

Human Trafficking in the Andaman Sea, Northern Part of Straits of Malacca, Including Coastal Areas Off Bangladesh/Off Myanmar

July 23, 2020

03/2019 Dated July 29, 2019

Attacks, hijackings, and kidnappings in the Sulu and

Celebes Seas

July 29, 2019

02/2019

Dated June 18, 2019

Maritime Cyber Risk Management

Revoked

This Advisory supersedes Marine Security Advisory 07/2017

June 18, 2019

01/2019

Dated 01 May, 2019

SECURITY LEVEL II - FOR VESSELS TRANSITING THE HRA

SOUTHERN RED SEA, GULF of ADEN, INDIAN OCEAN and ARABIAN SEA

Superseded by Marine Security Advisory 03/2021

This Marine Advisory Supplements Marine Advisory 04/2018

May 1, 2019

04/2018 Dated 31 July, 2018

NEW SECURITY GUIDANCE – Anti-Piracy, BMP5, and GCPG

This Marine Advisory supersedes Marine Advisory 05/2015

July 31, 2018

03/2018

Dated 09 March, 2018

Industry Releasable Threat Assessment (IRTA)

March 9, 2018

02/2018

Dated 02 February, 2018

Republic of Yemen Territorial Waters and Ports

(Revoked See Marine Security Advisory – 09/2023-Rev.11)

This Marine Advisory supersedes Marine Advisory 01/2017

`February 2,

2018

01/2018

Dated 05 January, 2018

U.S. Coast Guard Revises Security Advisory regarding Ports

Not Maintaining Effective Anti-Terrorism Measures

Superseded by Marine Security Advisory 02/2023

This Marine Advisory supersedes Marine Advisory 05/2017

January 5, 2018

07/2017

Dated 21 December, 2017

Maritime Cyber Risk Management

Superseded by Marine Security Advisory 02/2019

This Marine Advisory supersedes Marine Advisory 04/2016

December 21, 2017

06/2017

Dated 25 September, 2017

Combined Maritime Forces – Maritime Security Transit

Corridor

October 25,

2017

05/2017

Dated 20 September, 2017

U.S. Coast Guard Revises Security Advisory Regarding Ports Not Maintaining Effective Anti-Terrorism Measures

Superseded by Marine Security Advisory 01/2018

September 21, 2017

04/2017

Dated 31 August, 2017

Reporting of incidents of piracy and armed robbery against ships in the Gulf of Guinea

Superseded by Marine Security Advisory 01/2021

August 31, 2017

03/2017

Dated 25 August, 2017

Enhanced security measures for vessels transiting the

Singapore Straits, Malacca Straits, the waters off Mangkai & the

Anambas islands in the South China Sea and operating in the coastal waters of Malaysia and Indonesia

This Marine Advisory supersedes Marine Advisory 04/2014

August 29, 2017

02/2017

Dated 14 April, 2017

U.S. Coast Guard Revises Security Advisory Regarding Ports Not Maintaining Effective Anti-Terrorism Measures

Superseded by Marine Security Advisory 05/2017

This Marine Security Advisory supersedes Marine Security Advisory

1/2016

April 14, 2017

01/2017

Dated 17 February, 2017

Republic of Yemen Territorial Waters and Ports

Superseded by Marine Security Advisory 02/2018

This Marine Security Advisory supersedes Marine Advisory 2/2016

February 17,

2017

05/2016

Dated 24 August, 2016

Guidelines for protection against piracy in the Gulf of Guinea region

Superseded by Marine Security Advisory 01/2021

August 24, 2016

04/2016 Dated 12 July, 2016

The Guidelines on Cyber Security onboard Ships

Superseded by Marine Security Advisory 02/2019

Superseded by Marine Security Advisory 07/2017

July 12, 2016

03/2016

Dated: 17 June, 2016

Launching and flying Drones/Model Aircrafts from vessels

June 20, 2016

02/2016

Dated 18 May, 2016

Republic of Yemen Territorial Waters and Ports

Supersedes Marine Security Advisory 04/2013

Superseded by Marine Security Advisory01/2017

May 18, 2016

01/2016

Dated 05 April, 2016

U.S. Coast Guard Revises Security Advisory Regarding Ports not Maintaining Effective Anti-Terrorism Measure

Superseded by Marine Security Advisory 02/2017

Supersedes Marine Security Advisory 03/2015

April 5, 2016

05/2015

Dated 03 December, 2015

Revised High Risk Area – Vessels Transiting The Red Sea, Gulf of

Aden, Western Indian Ocean, Arabian Sea and Gulf of Oman

Superseded by Marine Security Advisory 04/2018

December 7, 2015

04/2015

Dated 23 June, 2015

LIBYA

This Marine Security Advisory supersedes Marine Security Advisory

01/2015

June 23, 2015

03/2015

Dated 23 June, 2015

U.S. Coast Guard Revises Security Advisory Regarding Ports

Not Maintaining Effective Anti-Terrorism Measures

Superseded by Marine Security Advisory 01/2016

This Marine Security Advisory supersedes Marine Security Advisory 02/2015

June 23, 2015

02/2015 Date 15

April 2015

U.S. Coast Guard Revises Security Advisory Regarding Ports

Not Maintaining Effective Anti-Terrorism Measures

Superseded by Marine Security Advisory 03/2015

This Marine Security Advisory supersedes Marine

Security Advisory

02/2014 and 06/2014

April 15, 2015

01/2015

Dated 12 Jan. 2015

Vessel Security in Libyan Waters andPort Superseded by Marine Security Advisory 04/2015

January 12,

2014

06/2014

Dated 06 Oct. 2014

U.S. Coast Guard Revises Security Advisory Regarding Ports

Not Maintaining Effective Anti-Terrorism Measures

Superseded by Marine Security Advisory 02/2015

This Marine Security Advisory supersedes Marine Security Advisory

03/2014

October 6, 2014

05/2014

Dated 14 Aug. 2014

Guidelines for protection against armed robbery and piracy in the Gulf of Guinea region and Reporting tothe Maritime

Trade Information Sharing Centre GulfGuinea (MTISC – GoG)

Revoked

August

14,2014

Revoked June

2016

04/2014

Dated 11 July 2014

Enhanced security measures for vessels transiting the

Singapore Straits, Malacca Straits, the waters off Mangkai & the

Anambas islands in the South China Sea and operating in the coastal waters of Malaysia and Indonesia

Superseded by Marine Security Advisory 03/2017

July 11, 2014

03/2014

Dated 08 July 2014

U.S. Coast Guard Revises Security Advisory Regarding Ports

Not Maintaining Effective Anti-Terrorism Measures

Superseded by Marine Security Advisory 06/2014

This Marine Security Advisory supersedes Marine Security Advisory

05/2013

July 8, 2014

02/2014

Dated 08 July 2014

The U.S. Coast Guard is issuing an updated Port Security Advisory for Libya

Superseded by Marine Security Advisory 02/2015

July 8, 2014

01/2014

Dated 20 Feb. 2014

Interim Guidelines for protection against piracy in the Gulf of Guinea region

Revoked

February 20,

2014

Revoked June 2016

05/2013

Dated 03 Dec. 2013

U.S. Coast Guard Revises Security Advisory Regarding Ports Not Maintaining Effective Anti-Terrorism Measures

Superseded by Marine Security Advisory 03/2014

This Marine Security Advisory supersedes Marine Security Advisory 05/2012

December 3, 2013

04/2013

Dated 12 Aug. 2013

Increased Ship Security Levels for Republic of Yemen Territorial

Waters and Ports

Superseded by 02/2016

This Marine Security Advisory supersedes Marine Security Advisory

03/2013

August 12, 2013

03/2013

Dated 07 Aug. 2013

Increased Ship Security Levels for Republic of Yemen Territorial Waters and Ports

See Marine Advisory 04/2013

August 7, 2013

02/2013

Dated 04 Jan. 2013

Interim Guidelines for protection against piracy in the Gulf of Guinea region

Revoked

January

4,2013

Revoked June 2016

01/2013

Dated 04 Jan. 2013

Guidelines for implementation of Best Management Practices and other Security Provisions relating topiracy and armed robbery

Superseded by Marine Security Advisory 04/2018

January 4, 2013

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