Outage in Simwood

Porting from Colt

Minor
August 14, 2025 - Started 10 days ago
Official incident page

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Outage Details

Colt have advised that they are unable to complete any import or export porting orders until further notice. Their Status page (https://www.colt.net/status/) suggests an IT issue while online speculation (https://cyberplace.social/@GossiTheDog/115022343170487477) is of an undisclosed cyber attack. We will advise when we have further news.
Components affected
Simwood Operations Desk
Latest Updates ( sorted recent to last )
MONITORING 1 day ago - at 08/22/2025 11:58AM

Other than restating their status page to say this was a cybersecurity incident from day one (formerly an "IT issue"), and their compromised documents being mid-auction, there is no update here. Their porting desk appear to have stopped the daily updates and are still not processing orders.

MONITORING 5 days ago - at 08/19/2025 12:51PM

There is no update here other than Colt's porting team have advised there will be no imports or exports "until further notice". We continue to queue POV and porting orders for them.

MONITORING 6 days ago - at 08/18/2025 02:23PM

Colt are still unable to process number ports, we assume as a consequence of their well publicised cyber-attack. A list of compromised files, which is asserted to be the files compromised by the attacks is at (https://www.klos.com/~john/colt_filename_tree.txt)

This list contains a number of interoperability documents between Simwood and Colt. The list also contains documents that appear to be Number Portability Order Forms, although it is unclear as to whether these relate to Simwood customers. NPORs will contain some information about the Subscriber changing providers, e.g. name, address, and telephone numbers. Additionally, there is other information clearly of a sensitive nature on the list, but that does not, as far as we can tell, relate to Simwood and its customer’s relationships.

At this time, we understand that Colt are working to prevent further disclosure, however, this is all the detail we have at this time. Our customers should engage their Data Protection Officers regarding the consequences of the attack on Colt as a matter of urgency.

MONITORING 8 days ago - at 08/15/2025 04:45PM

There is no news to report here although the now admitted attack is being actively reported on, e.g. https://www.bleepingcomputer.com/news/security/colt-telecom-attack-claimed-by-warlock-ransomware-data-up-for-sale/

MONITORING 9 days ago - at 08/14/2025 05:06PM

Colt have now confirmed an ongoing cyber-incident (https://www.colt.net/status/). At the moment voice traffic on existing ported numbers seems unaffected.

MONITORING 10 days ago - at 08/14/2025 01:55PM

Colt have advised that they are unable to complete any import or export porting orders until further notice. Their Status page (https://www.colt.net/status/) suggests an IT issue while online speculation (https://cyberplace.social/@GossiTheDog/115022343170487477) is of an undisclosed cyber attack. We will advise when we have further news.

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