Hysbysiad Preifatrwydd / Privacy Notice
Diweddarwyd diwethaf 26 Ionawr 2026 Last updated: 26 January 2026
| Mae’r Hysbysiad Preifatrwydd hwn yn esbonio sut mae Cytûn (Eglwysi Ynghyd yng Nghymru) yn casglu, defnyddio ac amddiffyn data personol yn unol â Rheoliad Cyffredinol y DU ar Ddiogelu Data (UK GDPR) a Deddf Diogelu Data 2018. | This Privacy Notice explains how Cytûn (Churches Together in Wales) collects, uses and protects personal data in accordance with the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018. |
| ## 1. Rheolydd Data | ## 1. Data Controller |
| Cytûn (Eglwysi Ynghyd yng Nghymru) – Cytûn Churches Together in Wales yw’r rheolydd data ar gyfer y data personol a brosesir gennym. | Cytûn (Churches Together in Wales) – Cytûn Eglwysi Ynghyd yng Nghymru is the data controller responsible for the personal data we process. |
| Manylion cyswllt:Cytûn (Eglwysi Ynghyd yng Nghymru) – Cytûn Churches Together in WalesHastings House, Fitzalan PlaceCardiff CF24 0BLY Deyrnas Unedig Gwefan: https://www.cytun.co.ukE-bost: post@cytun.cymruFfôn: 0330 016 9860 | Contact details:Cytûn (Churches Together in Wales) – Cytûn Eglwysi Ynghyd yng NghymruHastings House, Fitzalan PlaceCardiff CF24 0BLUnited Kingdom Website: https://www.cytun.co.ukEmail: post@cytun.cymruTelephone: 0330 016 9860 |
| ## 2. Pa Ddata Personol a Gasglwn | ## 2. Personal Data We Collect |
| Gallwn gasglu a phrosesu’r categorïau canlynol o ddata personol: | We may collect and process the following categories of personal data: |
| • Manylion adnabod a chyswllt (megis enw, cyfeiriad e-bost, sefydliad, rhif ffôn)• Gwybodaeth a ddarperir drwy ymholiadau neu ffurflenni ar y wefan• Manylion tanysgrifio lle rydych wedi dewis derbyn diweddariadau• Data technegol, gan gynnwys cyfeiriad IP a gwybodaeth am ddefnydd o’r wefan | • Identification and contact details (such as name, email address, organisation, telephone number)• Information provided through enquiries or website forms• Subscription information where you opt to receive updates• Technical data including IP address and website usage information |
| Nid ydym yn bwriadu casglu data personol sensitif drwy’r wefan hon, oni bai eich bod yn dewis ei ddarparu’n wirfoddol. | We do not intentionally collect special category (sensitive) personal data via this website unless you choose to provide it voluntarily. |
| ## 3. Sut Rydym yn Defnyddio Data Personol | ## 3. How We Use Personal Data |
| Rydym yn defnyddio data personol at y dibenion canlynol: | We process personal data for the following purposes: |
| • Ymateb i ymholiadau a cheisiadau• Cyfathrebu â sefydliadau ac unigolion sy’n ymgysylltu â Cytûn• Anfon cylchlythyrau neu wybodaeth ar gais• Rheoli perthnasoedd ag aelodau a phartneriaid• Gwella perfformiad a defnyddioldeb y wefan• Cydymffurfio â gofynion cyfreithiol a rheoleiddiol | • Responding to enquiries and requests• Communicating with individuals and organisations who engage with Cytûn• Sending newsletters or requested information• Managing relationships with members and partners• Improving website performance and usability• Complying with legal and regulatory obligations |
| ## 4. Sail Gyfreithiol ar gyfer Prosesu | ## 4. Lawful Basis for Processing |
| Rydym yn prosesu data personol o dan un neu fwy o’r seiliau cyfreithiol canlynol: | We process personal data under one or more of the following lawful bases: |
| • Caniatâd• Buddiannau cyfreithlon• Rhwymedigaeth gyfreithiol | • Consent• Legitimate interests• Legal obligation |
| Gallwch dynnu eich caniatâd yn ôl ar unrhyw adeg. | You may withdraw consent at any time. |
| ## 5. Cwcis a Dadansoddeg | ## 5. Cookies and Analytics |
| Mae’r wefan hon yn defnyddio cwcis i sicrhau ei bod yn gweithio’n effeithiol ac i’n helpu i ddeall sut y caiff ei defnyddio. | This website uses cookies to ensure it functions properly and to help us understand how it is used. |
| Gallwch reoli cwcis drwy osodiadau eich porwr. | You can manage cookies through your browser settings. |
| ## 6. Rhannu Data | ## 6. Data Sharing |
| Nid ydym yn gwerthu data personol. | We do not sell personal data. |
| Gall data gael ei rannu â darparwyr gwasanaeth dibynadwy pan fo hynny’n angenrheidiol at ddibenion gweithredol. | Data may be shared with trusted service providers where necessary for operational purposes. |
| ## 7. Cadw Data | ## 7. Data Retention |
| Cedwir data personol dim ond cyhyd ag y bo’n angenrheidiol. | Personal data is retained only for as long as necessary. |
| ## 8. Eich Hawliau | ## 8. Your Rights |
| Mae gennych hawl i gael mynediad at eich data, ei gywiro, ei ddileu, cyfyngu ar brosesu, neu wrthwynebu prosesu mewn rhai amgylchiadau. | You have rights to access, correct, erase, restrict or object to processing in certain circumstances. |
| Mae gennych hefyd hawl i gwyno i Swyddfa’r Comisiynydd Gwybodaeth (ICO): https://ico.org.uk | You also have the right to complain to the Information Commissioner’s Office (ICO): https://ico.org.uk |
| ## 9. Diogelwch Data | ## 9. Data Security |
| Rydym yn cymryd mesurau technegol a threfniadol priodol i ddiogelu data personol. | We take appropriate technical and organisational measures to protect personal data. |
| ## 10. Newidiadau i’r Hysbysiad hwn | ## 10. Changes to This Notice |
| Gellir diweddaru’r hysbysiad hwn o bryd i’w gilydd. | This notice may be updated from time to time. |