As of February 2025, the largest fine issued for violation of the General Data Protection Regulation (GDPR) in the United Kingdom (UK) was more than 22 million euros, received by British Airways in October 2020. Another fine received by Marriott International Inc. in the same month was the second-highest in the UK and amounted to over 20 million euros.

Between 2018 and 2022, there has been a significant increase in the level of awareness around the General Data Protection Regulation (GDPR) among European users. In 2018, when the GDPR was first applied, the United Kingdom had the highest level of awareness, with 32 percent of respondents agreeing or strongly agreeing with the statement: "I am aware of the new General Data Protection Regulation (GDPR) that will be introduced in May 2018". In 2022, the share of UK respondents agreeing with the statement increased to 73 percent. France had the lowest level of awareness in 2018, 20 percent, whereas in 2022 it reached 47 percent but remained the lowest among other European markets.

Since the enforcement of the General Data Protection Regulation (GDPR) in May 2018, fines have been issued for several types of violations. As of February 2025, the most significant share of penalties was due to companies' non-compliance with general data processing principles. This violation has led to over 2.4 billion euros worth of fines.