{"id":2104,"date":"2026-04-04T12:55:39","date_gmt":"2026-04-04T12:55:39","guid":{"rendered":"https:\/\/cyberfirstwales.co.uk\/?p=2104"},"modified":"2026-04-07T14:26:02","modified_gmt":"2026-04-07T14:26:02","slug":"beth-syn-digwydd-ir-data-deall-risgiau-gwybodaeth-mewn-ai","status":"publish","type":"post","link":"https:\/\/cyberfirstwales.co.uk\/cy\/beth-syn-digwydd-ir-data-deall-risgiau-gwybodaeth-mewn-ai\/","title":{"rendered":"Beth sy\u2019n digwydd i\u2019r data? Deall risgiau gwybodaeth mewn AI"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Gall offer AI gynhyrchu testun, ysgrifennu cod a hyd yn oed weithredu. Ond maent hefyd yn dibynnu ar ddata. Mae pob prompt, ffeil neu gysylltiad \u00e2 system yn cynnwys gwybodaeth sy\u2019n cael ei phrosesu, ac weithiau ei storio. Mae deall sut mae data yn llifo drwy systemau AI yn hanfodol i athrawon a dysgwyr sy\u2019n defnyddio\u2019r offer hyn yn ddiogel.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nid offeryn yn unig yw AI, mae\u2019n brosesydd data<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Mae offer deallusrwydd artiffisial yn aml yn cael eu cyflwyno fel cynorthwywyr syml. Mae defnyddiwr yn gofyn cwestiwn ac yn cael ateb. Fodd bynnag, mae realiti pwysig tu \u00f4l i\u2019r rhyngweithio hwn. Mae systemau AI yn prosesu ac weithiau\u2019n storio\u2019r wybodaeth a roddir iddynt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pan fydd defnyddiwr yn mewnbynnu prompt, yn uwchlwytho dogfen neu\u2019n cysylltu AI \u00e2 llwyfan arall, maent yn rhannu data. Gall hyn gynnwys gwybodaeth bersonol, gwaith ysgol neu fanylion sensitif am sefydliad.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em>Mae pob rhyngweithio ag AI hefyd yn gyfnewid data.<\/em><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Mae canllawiau gan<a href=\"https:\/\/ico.org.uk\/about-the-ico\/what-we-do\/our-work-on-artificial-intelligence\/guidance-and-practical-resources\/\"> Information Commissioner&#8217;s Office<\/a> yn pwysleisio bod angen i sefydliadau ddeall sut mae data personol yn cael ei ddefnyddio wrth fabwysiadu offer AI. Mae hyn yn cynnwys gwybod ble mae data yn cael ei brosesu, pa mor hir y caiff ei gadw a phwy sydd \u00e2 mynediad ato.<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">O ble mae\u2019r risgiau yn dod<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nid yw\u2019r risgiau sy\u2019n gysylltiedig ag AI a data bob amser yn deillio o ymosodiadau bwriadol. Yn aml, maent yn codi o ddefnydd bob dydd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Er enghraifft, gall dysgwr gludo gwaith cwrs i mewn i offeryn AI i\u2019w wella. Gall athro uwchlwytho dogfen i gael crynodeb. Yn y ddau achos, mae gwybodaeth yn cael ei rhannu \u00e2 system allanol.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae ymchwil wedi dangos y gall data sensitif weithiau gael ei ail-greu neu ei gasglu o systemau AI o dan rai amodau, yn enwedig pan fo diogelwch yn gyfyngedig (<a href=\"https:\/\/arxiv.org\/abs\/2012.07805\">https:\/\/arxiv.org\/abs\/2012.07805<\/a>). Er bod systemau modern wedi gwella, nid yw\u2019r risg wedi diflannu\u2019n llwyr.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae risg hefyd o ddatgelu data yn ddamweiniol. Os yw offer AI wedi\u2019u cysylltu \u00e2 dogfennau, e-byst neu yriannau a rennir, gallant gyrchu mwy o wybodaeth nag y mae\u2019r defnyddiwr yn ei ddisgwyl.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae canllawiau gan <a href=\"https:\/\/www.ncsc.gov.uk\/guidance\/ai-and-cyber-security-what-you-need-to-know\">National Cyber Security Centre<\/a> yn nodi bod cysylltu systemau AI \u00e2 gwasanaethau ehangach yn cynyddu\u2019r risg o ddatgelu data, yn enwedig pan nad yw caniat\u00e2d yn cael ei reoli\u2019n ofalus.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Y gwahaniaeth rhwng offer cyhoeddus ac offer rheoledig<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nid yw pob offeryn AI yn trin data yn yr un ffordd. Mae hyn yn wahaniaeth pwysig i ysgolion ac addysgwyr.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Gall offer AI cyhoeddus:<\/h4>\n\n\n  <ul class=\"block-list-icons is-style-default\">\n          <li class=\"item has-content\" style=\"--anim-order: 1;\">\n        <span class=\"rk-icon \"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"36\" viewBox=\"0 0 20 36\"><path d=\"M19.27175,15.73975 C20.24775,16.71675 20.24775,18.30275 19.27175,19.27875 L4.27175,34.27875 C3.29475,35.25575 1.70875,35.25575 0.73275,34.27875 C-0.24425,33.30275 -0.24425,31.71675 0.73275,30.73975 L13.96675,17.50575 L0.73975,4.27175 C-0.23625,3.29475 -0.23625,1.70875 0.73975,0.73275 C1.71675,-0.24425 3.30275,-0.24425 4.27875,0.73275 L19.27175,15.73975 Z\" transform=\"translate(-.006 .494)\"\/><\/svg><\/span>        <div class=\"content-wrap\">\n          <h3 class=\"title\">brosesu data y tu allan i\u2019r DU<\/h3>\n\n                      <div class=\"content\">Gall athro sy\u2019n defnyddio offeryn AI am ddim i grynhoi gwaith disgyblion fod yn anfon y data hwnnw i weinyddion mewn gwlad arall heb sylweddoli, lle mae rheolau diogelu data yn wahanol.\r\n<\/div>\n                  <\/div>\n      <\/li>\n          <li class=\"item has-content\" style=\"--anim-order: 2;\">\n        <span class=\"rk-icon \"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"36\" viewBox=\"0 0 20 36\"><path d=\"M19.27175,15.73975 C20.24775,16.71675 20.24775,18.30275 19.27175,19.27875 L4.27175,34.27875 C3.29475,35.25575 1.70875,35.25575 0.73275,34.27875 C-0.24425,33.30275 -0.24425,31.71675 0.73275,30.73975 L13.96675,17.50575 L0.73975,4.27175 C-0.23625,3.29475 -0.23625,1.70875 0.73975,0.73275 C1.71675,-0.24425 3.30275,-0.24425 4.27875,0.73275 L19.27175,15.73975 Z\" transform=\"translate(-.006 .494)\"\/><\/svg><\/span>        <div class=\"content-wrap\">\n          <h3 class=\"title\">gadw mewnbynnau er mwyn gwella\u2019r system<\/h3>\n\n                      <div class=\"content\">Os yw dysgwr yn gludo gwaith cwrs i mewn i sgwrsfeiriwr AI, gall y cynnwys hwnnw gael ei storio a\u2019i ddefnyddio i wella\u2019r system, sy\u2019n golygu nad yw\u2019n gwbl breifat i\u2019r dysgwr neu\u2019r ysgol mwyach.<\/div>\n                  <\/div>\n      <\/li>\n          <li class=\"item has-content\" style=\"--anim-order: 3;\">\n        <span class=\"rk-icon \"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"36\" viewBox=\"0 0 20 36\"><path d=\"M19.27175,15.73975 C20.24775,16.71675 20.24775,18.30275 19.27175,19.27875 L4.27175,34.27875 C3.29475,35.25575 1.70875,35.25575 0.73275,34.27875 C-0.24425,33.30275 -0.24425,31.71675 0.73275,30.73975 L13.96675,17.50575 L0.73975,4.27175 C-0.23625,3.29475 -0.23625,1.70875 0.73975,0.73275 C1.71675,-0.24425 3.30275,-0.24425 4.27875,0.73275 L19.27175,15.73975 Z\" transform=\"translate(-.006 .494)\"\/><\/svg><\/span>        <div class=\"content-wrap\">\n          <h3 class=\"title\">cynnig llai o dryloywder ynghylch sut mae data\u2019n cael ei ddefnyddio<\/h3>\n\n                      <div class=\"content\">Efallai na fydd arweinwyr ysgol yn gallu gweld yn glir beth sy\u2019n digwydd i ddata ar \u00f4l ei fewnbynnu i offeryn AI cyhoeddus, gan ei gwneud yn anodd asesu risg neu gyflawni cyfrifoldebau diogelu.\r\n<\/div>\n                  <\/div>\n      <\/li>\n      <\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Mewn cyferbyniad, mae offer rheoledig neu fentrau yn fwy tebygol o:<\/h4>\n\n\n  <ul class=\"block-list-icons\">\n          <li class=\"item has-content\" style=\"--anim-order: 1;\">\n        <span class=\"rk-icon \"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"36\" viewBox=\"0 0 20 36\"><path d=\"M19.27175,15.73975 C20.24775,16.71675 20.24775,18.30275 19.27175,19.27875 L4.27175,34.27875 C3.29475,35.25575 1.70875,35.25575 0.73275,34.27875 C-0.24425,33.30275 -0.24425,31.71675 0.73275,30.73975 L13.96675,17.50575 L0.73975,4.27175 C-0.23625,3.29475 -0.23625,1.70875 0.73975,0.73275 C1.71675,-0.24425 3.30275,-0.24425 4.27875,0.73275 L19.27175,15.73975 Z\" transform=\"translate(-.006 .494)\"\/><\/svg><\/span>        <div class=\"content-wrap\">\n          <h3 class=\"title\">gynnig polis\u00efau cliriach ar drin data<\/h3>\n\n                      <div class=\"content\">Bydd llwyfan AI a gymeradwyir gan ysgol fel arfer yn egluro sut mae data\u2019n cael ei brosesu a\u2019i storio, gan helpu athrawon i wneud penderfyniadau gwybodus.\r\n<\/div>\n                  <\/div>\n      <\/li>\n          <li class=\"item has-content\" style=\"--anim-order: 2;\">\n        <span class=\"rk-icon \"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"36\" viewBox=\"0 0 20 36\"><path d=\"M19.27175,15.73975 C20.24775,16.71675 20.24775,18.30275 19.27175,19.27875 L4.27175,34.27875 C3.29475,35.25575 1.70875,35.25575 0.73275,34.27875 C-0.24425,33.30275 -0.24425,31.71675 0.73275,30.73975 L13.96675,17.50575 L0.73975,4.27175 C-0.23625,3.29475 -0.23625,1.70875 0.73975,0.73275 C1.71675,-0.24425 3.30275,-0.24425 4.27875,0.73275 L19.27175,15.73975 Z\" transform=\"translate(-.006 .494)\"\/><\/svg><\/span>        <div class=\"content-wrap\">\n          <h3 class=\"title\">cyfyngu ar sut mae data\u2019n cael ei storio neu ei ailddefnyddio<\/h3>\n\n                      <div class=\"content\">Mae offer menter yn aml yn sicrhau nad yw data dysgwyr yn cael ei ddefnyddio i hyfforddi modelau, gan leihau\u2019r risg y bydd y wybodaeth honno\u2019n ymddangos mewn mannau eraill.\r\n<\/div>\n                  <\/div>\n      <\/li>\n          <li class=\"item has-content\" style=\"--anim-order: 3;\">\n        <span class=\"rk-icon \"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"36\" viewBox=\"0 0 20 36\"><path d=\"M19.27175,15.73975 C20.24775,16.71675 20.24775,18.30275 19.27175,19.27875 L4.27175,34.27875 C3.29475,35.25575 1.70875,35.25575 0.73275,34.27875 C-0.24425,33.30275 -0.24425,31.71675 0.73275,30.73975 L13.96675,17.50575 L0.73975,4.27175 C-0.23625,3.29475 -0.23625,1.70875 0.73975,0.73275 C1.71675,-0.24425 3.30275,-0.24425 4.27875,0.73275 L19.27175,15.73975 Z\" transform=\"translate(-.006 .494)\"\/><\/svg><\/span>        <div class=\"content-wrap\">\n          <h3 class=\"title\">darparu rheolaethau gweinyddol<\/h3>\n\n                      <div class=\"content\">Gall timau TG ysgol reoli pwy sy\u2019n defnyddio\u2019r offeryn, pa ddata y gellir ei gyrchu a sut mae\u2019n cael ei ddefnyddio, gan alluogi arweinwyr i reoli risg yn fwy effeithiol.\r\n<\/div>\n                  <\/div>\n      <\/li>\n      <\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Mae\u2019r Information Commissioner&#8217;s Office yn cynghori sefydliadau i gynnal asesiadau effaith diogelu data wrth gyflwyno systemau AI, yn enwedig pan fo data personol yn gysylltiedig.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae deall y gwahaniaeth hwn yn helpu ysgolion i wneud penderfyniadau gwybodus.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sut mae hyn yn cysylltu \u00e2\u2019r risgiau blaenorol<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nid yw\u2019r risgiau sy\u2019n gysylltiedig \u00e2 data yn bodoli ar eu pen eu hunain. Maent yn cysylltu\u2019n uniongyrchol \u00e2\u2019r materion a drafodwyd yn yr erthyglau blaenorol.<a href=\"https:\/\/cyberfirstwales.co.uk\/cy\/newyddion\/#main-listing\">AI in Education &#8211; CyberFirst Wales<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os nad yw cod a gynhyrchir gan AI yn cael ei ddeall yn llawn, gall ddatgelu data yn anfwriadol. Os yw system AI yn agored i chwistrellu promptiau, gall cyfarwyddiadau cudd arwain at ddatgelu gwybodaeth sensitif. Os oes gan asiant AI fynediad at systemau a data, gall weithredu ar y wybodaeth honno mewn ffyrdd nas bwriadwyd.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em>Po fwyaf o fynediad sydd gan AI at ddata, y mwyaf yw\u2019r effaith bosibl os bydd rhywbeth yn mynd o\u2019i le.<\/em><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Mae hyn yn golygu nad yw risg data yn fater ar wah\u00e2n. Mae\u2019n rhan o ddarlun ehangach lle mae <strong>gallu a mynediad AI yn cyfuno i greu risgiau newydd<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pam mae hyn yn bwysig i ddysgwyr<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Mae\u2019n hawdd gweld offer AI fel rhywbeth preifat neu bersonol. Fodd bynnag, gall y wybodaeth a roddir i\u2019r systemau hyn gael ei phrosesu mewn ffyrdd nad ydynt yn amlwg.<\/p>\n\n\n\n<div class=\"wp-block-cover is-light has-parallax has-custom-content-position is-position-center-right\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#b0aa94\"><\/span><div aria-label=\"Cyberfirst Wales what happens to the data in AI systems\" class=\"wp-block-cover__image-background wp-image-2093 has-parallax\" role=\"img\" style=\"background-position:50% 50%;background-image:url(https:\/\/cyberfirstwales.co.uk\/wp-content\/uploads\/2026\/04\/CyberFirst-wales-what-happens-to-the-data-featured-image.png);\"><\/div><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<p class=\"has-text-align-right is-style-restricted-width-50 has-border-color has-orange-border-color has-light-grey-color has-orange-background-color has-text-color has-background has-link-color has-medium-font-size wp-elements-28890acccdf04f0382389ad60ebb953e wp-block-paragraph\" style=\"border-width:10px;margin-top:9px;margin-right:0px;margin-bottom:9px;margin-left:0px\"><em>I ddysgwyr, mae deall risgiau data yn rhan allweddol o lythrennedd digidol.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Mae angen i ddysgwyr ddatblygu arferion syml ond pwysig. Dylent feddwl yn ofalus am yr hyn maent yn ei rannu, yn enwedig pan fo\u2019n cynnwys gwybodaeth bersonol neu waith nas cyflwynwyd eto.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae\u2019r Information Commissioner&#8217;s Office yn pwysleisio\u2019r egwyddor o leihau data, sef rhannu dim ond y wybodaeth sydd ei hangen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pam mae hyn yn bwysig i athrawon ac ysgolion<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">I athrawon ac arweinwyr ysgolion, mae defnyddio AI yn codi materion ehangach ynghylch diogelu a diogelwch data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae gan ysgolion gyfrifoldeb i ddiogelu data dysgwyr a sicrhau bod systemau\u2019n cael eu defnyddio\u2019n briodol. Mae hyn yn cynnwys deall sut mae offer AI yn rhyngweithio \u00e2 data dysgwyr, systemau mewnol a gwasanaethau allanol.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae canllawiau gan National Cyber Security Centre yn argymell dull gofalus wrth integreiddio AI \u00e2 systemau presennol, yn enwedig pan fo data sensitif yn gysylltiedig.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gall hyn olygu dewis offer cymeradwy, cyfyngu ar integreiddiadau a darparu canllawiau clir i staff a dysgwyr.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lleihau\u2019r risg yn ymarferol<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nid yw lleihau risg data yn golygu osgoi AI, ond ei ddefnyddio\u2019n gyfrifol.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un egwyddor allweddol yw cyfyngu ar yr hyn sy\u2019n cael ei rannu. Dylai defnyddwyr osgoi mewnbynnu gwybodaeth sensitif oni bai eu bod yn deall sut y caiff ei thrin.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae hefyd yn bwysig deall caniat\u00e2d. Dylai systemau AI gael mynediad dim ond i\u2019r data a\u2019r systemau sydd eu hangen arnynt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae goruchwyliaeth ddynol yn parhau\u2019n hanfodol. Dylid adolygu allbynnau a gweithredoedd AI, yn enwedig mewn cyd-destun addysgol.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Edrych ymlaen<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Wrth i AI ddod yn rhan fwy o addysg, bydd cwestiynau am ddata yn dod yn fwy pwysig. Mae manteision y dechnoleg yn glir, ond maent yn dibynnu ar fynediad at wybodaeth.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae cynnydd wedi\u2019i wneud. Mae darparwyr AI yn gwella tryloywder, yn cynnig mwy o reolaeth ac yn lleihau cadw data. Ar yr un pryd, mae rheoleiddwyr fel yr Information Commissioner&#8217;s Office yn darparu canllawiau cliriach.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fodd bynnag, mae\u2019r her sylfaenol yn parhau. Mae AI yn dibynnu ar ddata, ac nid yw bob amser yn amlwg sut mae\u2019r data hwnnw\u2019n cael ei ddefnyddio.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I addysg, mae hyn yn gyfle. Drwy helpu dysgwyr i ddeall sut mae data yn llifo drwy systemau AI, a thrwy annog defnydd cyfrifol, gallwn sicrhau bod y dechnoleg hon yn cael ei defnyddio\u2019n ddiogel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pan gaiff ei defnyddio\u2019n dda, gall AI gefnogi dysgu a chreadigrwydd. Y nod yw sicrhau bod hyn yn cael ei gydbwyso gan ymwybyddiaeth a dealltwriaeth.<\/p>\n\n\n<div class=\"block-section block-cta is-style-full-width text-center\">\n  <div class=\"container section-inner\">\n    <div class=\"content-wrap\">\n      \n      <h2 class=\"title\">Dod yn Ysgol CyberFirst<\/h2>\n\n      <div class=\"content\">\n        <p>Os ydych chi\u2019n ysgol neu\u2019n goleg yng Nghymru ac eisiau mwynhau manteision CyberFirst, does dim amser gwell na nawr i ddechrau ar eich cais am wobr.<\/p>\n\n              <\/div>\n\n      <div class=\"buttons\">        <a href=\"https:\/\/cyberfirstwales.co.uk\/schools-and-colleges\/\" class=\"btn btn-light\">\n            Learn More        <\/a>\n    <\/div>    <\/div>\n  <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Gall offer AI gynhyrchu testun, ysgrifennu cod a hyd yn oed weithredu. Ond maent hefyd yn dibynnu ar ddata. Mae pob prompt, ffeil neu gysylltiad \u00e2 system yn cynnwys gwybodaeth sy\u2019n cael ei phrosesu, ac weithiau ei storio. Mae deall sut mae data yn llifo drwy systemau AI yn hanfodol i athrawon a dysgwyr sy\u2019n &hellip; <a href=\"https:\/\/cyberfirstwales.co.uk\/cy\/beth-syn-digwydd-ir-data-deall-risgiau-gwybodaeth-mewn-ai\/\">Continued<\/a><\/p>\n","protected":false},"author":3,"featured_media":2093,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-2104","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cyffredinol"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Beth sy\u2019n digwydd i\u2019r data? 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