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Using BCC (Blind Copy) in Business Emails: Legal Considerations

Table of Contents

In Short

  • Using BCC in bulk emails can lead to unintentional data breaches if not managed carefully.
  • Consider alternatives like secure bulk email platforms or encrypted transfers for high-risk data.
  • Regular staff training on email security and reporting protocols helps minimise risks and ensure UK GDPR compliance.

Tips for Businesses

To manage bulk emails securely, review whether BCC is suitable for each use, especially for sensitive data. Implement email tools that provide additional protections, and regularly train employees on secure email practices to reduce accidental data breaches.

Digital marketing is a huge trend; businesses rely heavily on email marketing to generate new leads and revenue. Many companies use the ‘BCC’ or blind carbon copy function to protect privacy when sending bulk emails to multiple recipients. However, it is crucial to understand that various privacy considerations under the UK General Data Protection Regulation (UK GDPR) come into play. While BCC is often used to conceal recipients’ addresses, improper use can harm personal data and lead to many negative consequences. This article explores some key considerations for using BCC in compliance with data protection laws and some practical steps for managing bulk emails securely, with consideration of the UK ICO guidance on this practice.

What is the UK GDPR?

The UK GDPR is the fundamental data protection law in the United Kingdom. It governs how organisations collect, process, and secure personal data that can identify an individual. Under the UK GDPR rules, organisations must ensure that personal data is handled securely and safeguarded against unauthorised access. This is a concern when using bulk emails, where accidental disclosures of personal data occur. 

Any unintended disclosure of personal information (even if it is inadvertent) can constitute a data breach, which can result in consequences from fines to reputational damage. For this reason, the UK ICO has issued specific guidance on sending out these types of emails and critical issues for organisations to consider.

Why Can Using BCC in Bulk Emails Be Risky?

The BCC function enables organisations to send emails to multiple recipients while keeping each address private, but the feature comes with risks. Errors in using BCC (such as mistakenly selecting CC instead) can reveal all recipient addresses and cause a data breach. Even if the email content is harmless, showing recipients’ email addresses containing personal information may lead to regulatory consequences and penalties. As such, you must consider protecting personal data when using BCC in bulk communications.

Imagine a business marketing firm sending a newsletter to its clients but mistakenly using the CC field instead of BCC. This small error could expose every client’s email address to the entire recipient list, risking the company’s reputation and client trust, especially among those who value privacy. Such situations show how quickly an oversight can compromise privacy and confidentiality, potentially leading to severe consequences.

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What are Key Measures to Consider When Using BCC?

There are a range of measures that an organisation can implement to protect personal information when using bulk emails (some of which are highlighted by the ICO). Let us explore these below.

Using Technical Safeguards

Organisations must assess whether BCC is the best choice for email communications, especially when sending out sensitive information. When BCC alone may not provide enough protection, your organisation should consider alternatives such as mail merge tools or secure bulk email platforms, which offer more robust safeguards against unauthorised disclosure.

An organisation should explore additional technical safeguards, such as disabling auto-complete to reduce the risk of selecting the wrong recipient, setting up alerts that flag the use of the CC field instead of BCC, and implementing email delays to allow a final review before sending. These technical measures can add an extra layer of protection against common errors in email communications

For high-risk communications (such as those involving special category data), you must use alternatives to BCC, such as encrypted email platforms, rather than relying solely on BCC.

The ICO also guides organisations to explore other secure email solutions (such as encrypted platforms) that provide a more controlled way to manage sensitive information. Using these dedicated tools helps minimise data exposure and strengthens compliance with data protection requirements.

The Benefits of Staff Training

It is easy for staff to slip up when sending out bulk emails, especially when they are in a rush. Staff training should play a critical role in minimising risks associated with bulk emails. Managers should fully train employees on correctly using CC and BCC fields. Employees should understand when secure alternatives to bulk emails are more appropriate and be aware of the potential risks of exposing recipient information.

Training should also cover best practices for safeguarding personal data, which can help staff spot situations where sensitive information demands additional security measures. Additionally, staff need to know how to report breaches quickly if they occur, as early reporting enables organisations to act fast to contain and mitigate potential harm.

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Minimising Data in Bulk Emails

The principle of data minimisation is beneficial for secure email practices. Organisations must only include necessary personal data in bulk emails, as limiting data reduces the risk of accidental disclosure.

If you are handling special category data (such as health, financial, or other sensitive information), use encrypted attachments or secure data transfer services instead of relying solely on BCC. Data minimisation within bulk emails reduces the risk of disclosure and helps comply with broader data protection obligations.

In summary, businesses should take great caution when sending out bulk emails and always stay vigilant, remembering the risk of personal data breaches occurring when using this practice.

Key Takeaways

BCC is a popular tool that offers ease and speed but comes with risks to personal information. Organisations must evaluate whether BCC alone meets their needs or if secure bulk email solutions, mail merge tools, or encrypted transfer options would be more effective, especially for sensitive data. Consistent staff training and policy reviews should reinforce data protection practices and reduce the risk of unintentional data exposure. By implementing these measures proactively into daily operations, organisations can better protect personal data, uphold customer trust, and ensure compliance with UK GDPR.

If you need help with your UK GDPR compliance, our experienced data, privacy and IT lawyers can assist as part of our LegalVision membership. For a low monthly fee, you will have unlimited access to lawyers to answer your questions and draft and review your documents. Call us today on 0808 196 8584 or visit our membership page.

Frequently Asked Questions

What is the UK GDPR?

The UK GDPR is the UK’s primary data protection law, designed to safeguard personal information. It sets out mandatory rules about how organisations must collect, process, and protect personal data.

Are BCC emails risky from a privacy perspective?

While BCC helps conceal recipients’ addresses in bulk emails, it does not do so without risk. Common mistakes (such as accidentally using CC instead of BCC) can expose all recipients’ addresses, leading to data breaches. You must assess whether BCC is appropriate and implement additional safeguards if needed.

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Sej Lamba

Sej Lamba

Sej is an Expert Legal Contributor at LegalVision. She is an experienced legal content writer who enjoys writing legal guides, blogs, and know-how tools for businesses. She studied History at University College London and then developed a passion for law, which inspired her to become a qualified lawyer.

Qualifications: Legal Practice Course, Kaplan Law School; Graduate Diploma in Law, Kaplan Law School; BA, History, University College.

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