Translate the text from Welsh to English.



 
Dydd Gwener daeth adroddiadau bod ymosodiad seiber byd\-eang yn amharu ar filoedd o sefydliadau a diwydiannau mewn dros 150 o wledydd. Cafodd peiriannau eu heintio â meddalwedd wystlo, gan amgryptio ffeiliau cyfrifiadurol a hawlio pridwerth am eu rhyddhau.  Er nad yw cymhelliad yr ymosodiad yn glir, mae'n destun ymchwiliad troseddol.  
  
Roedd cryn dipyn o gyhoeddusrwydd am effaith yr ymosodiad seiber hwn ar y Gwasanaeth Iechyd Gwladol yn Lloegr a'r Alban. Nid yw'r meddalwedd wystlo wedi effeithio ar systemau'r Gwasanaeth Iechyd yma yng Nghymru, yn rhannol yn sgil yr amddiffynfeydd cadarn sydd eisoes yn eu lle.  
  
Er mwyn parhau i amddiffyn GIG Cymru rhag unrhyw ymyrraeth, gosodwyd amryw o fesurau diogelwch ychwanegol. Roedd rhain yn cynnwys rhwystro pob e\-bost allanol a anfonwyd at GIG Cymru dros dro, a gosod patsys gwrthfeirysau newydd ar systemau cenedlaethol a lleol. Disgwylir i'r gwaith hwn gael ei gwblhau heddiw.  
  
Lle bynnag y canfuwyd meddalwedd wystlo, cymerwyd camau unioni ar unwaith i atal y feirws rhag lledu. O ganlyniad, ni chafodd unrhyw ddata am gleifion eu peryglu na'u colli.   
  
Nid oes unrhyw adroddiadau bod y digwyddiad wedi effeithio ar ofal i gleifion. Fodd bynnag, er mwyn caniatáu Ysbyty Felindre i osod patsys rhagofalus ar eu systemau, aildrefnwyd apwyntiadau radiotherapi carfan fach o gleifion (cyfanswm o 40\) o ddydd Llun i ddydd Mawrth.   
  
Ar draws y sector cyhoeddus ehangach mae Llywodraeth Cymru, ynghyd â chyrff Llywodraeth Leol ac ysgolion, wedi cadarnhau na chafwyd unrhyw adroddiadau am achosion ac na chanfuwyd unrhyw faleiswedd weithredol ar eu systemau. Fel mesur rhagofalus, aed ati i osod patsys ar fyrder, yn unol ag arferion gorau'r diwydiant. Rydym wedi ysgrifennu at yr holl Awdurdodau Lleol yn gofyn iddynt roi manylion am unrhyw faterion a ganfuwyd, ynghyd â’r mesurau lliniaru sy’n cael eu gosod ganddynt.   
  
Mae Rhwydwaith Prosiect Cydgasglu Band Eang y Sector Cyhoeddus, sy'n cysylltu'r rhan fwyaf o'r sector cyhoeddus yng Nghymru, hefyd wedi cadarnhau na chafodd ei effeithio.   
  
Mae Llywodraeth Cymru wedi darparu cyngor ac arweiniad i bob Corff Cyhoeddus a Noddir gan Lywodraeth Cymru, ac wedi gofyn iddynt dynnu sylw at unrhyw beth amheus.    
  
Rydym yn parhau i fonitro'r sefyllfa a chymryd camau lle gwelir unrhyw beryglon, gan gynnwys gweithio gyda COBR, pwyllgor ymateb i argyfwng Llywodraeth y DU.  
  
Hoffwn ddiolch i bob un o'r timau TG ar draws GIG Cymru a'r sector cyhoeddus ehangach a fu'n gweithio'n ddiflino drwy'r penwythnos i amddiffyn ein gwasanaethau cyhoeddus.

 





Translation:


 
On Friday it was reported that a global coordinated cyber attack disrupted thousands of organisations and industries in more than 150 countries.  Ransomware infected machines, resulting in the encryption of computer files with demands for ransom payments being requested. Although the motive behind the attack is unclear, it is being treated as a criminal investigation.


There has been considerable publicity around the impact this cyber attack has had on NHS England and NHS Scotland. The Ransomware has not affected the integrity of NHS systems here in Wales, partly due to the resilience defences already in place.


To continue to protect NHS Wales from disruption a number of extra security controls have been put in place. This included temporarily blocking all external emails sent to NHS Wales and applying new anti\-virus definitions and patches to both national and local systems. This work is expected to be completed today.


Where the ransomware has been detected, immediate remedial action has been taken to prevent the spreading of the virus. This has ensured that no patient data has been compromised or lost.


We have no reports of the incident impacting on patient care. However, to allow precautionary patching of their systems, Velindre Hospital rescheduled radiotherapy appointments for a small cohort of patients (40 in total) from Monday to Tuesday.


Across the wider public sector in Wales, Welsh Government, along with local government bodies and schools has confirmed that no instances have been reported and no active malware has been found on their systems. As a precautionary measure emergency patching has taken place in line with industry updates and best practice. We have written to all local authorities asking them to provide details of any issues found, along with the mitigations they are putting in place.


The Public Sector Broadband Aggregation network, which connects most of the public sector in Wales together, has also confirmed that it has not been affected.


Welsh Government has provided advice and guidance to all Welsh Government Sponsored Public Bodies and asked them to report anything suspicious to Welsh Government.


We are continuing to monitor the situation and taking action where risks is identified, including working with COBR, the UK Government’s emergency response committee.


I would like to thank all of the IT Teams across NHS Wales and the wider public sector who have worked tirelessly throughout the weekend to protect our public services.