AI Email Assistants: Convenient, but Are They Safe? Here’s What You Need to Know
If you use Gmail, Outlook, or any modern email service, you’ve probably noticed suggestions finishing your sentences or offering quick replies. These features, powered by large language models, are now standard in many mail clients. Microsoft Copilot for Outlook, Google’s Smart Compose and Help Me Write, and third‑party tools like Shortwave or Superhuman all promise to save time. But enabling them means handing over access to your inbox—and that creates trade‑offs most users aren’t fully aware of.
This article walks through what AI email assistants actually do, the privacy and security risks they introduce, and practical steps you can take to keep your email safer without abandoning the convenience.
What Happened
In June 2026, Bitdefender published a detailed analysis of the benefits and hidden risks of AI email assistants. The report highlighted how these tools are being rapidly integrated into major platforms, yet many users don’t read the privacy implications or consider the possibility of AI‑generated phishing attacks. The timing is important: as the technology matures, more people are casually relying on it for sensitive correspondence—often without adjusting any settings.
The report identified three main risk categories:
- Data privacy: AI assistants need to read your email content to generate suggestions. That means your messages are processed on the provider’s servers. Depending on the service, the data may be used to train future models or retained for other purposes.
- AI‑generated phishing: Attackers can craft emails that imitate your writing style using publicly available messages or leaked data. If your AI assistant learns patterns from compromised accounts, it might unwittingly help produce convincing scams.
- Accidental exposure: If you dictate a draft with sensitive information, the AI might store that snippet in a way that could be accessed by others—through a breach, an exposed API, or even through shared training data.
Why It Matters
Email remains the primary vector for both legitimate communication and cyberattacks. Entrusting an AI with your inbox is convenient, but it also expands the surface area for data leaks and social engineering.
Consider what happens when you use “Help Me Write” in Gmail for a message containing financial details or health information. Google’s privacy policy states that it processes content to provide and improve its services, but the exact retention and anonymization practices are not always easy to verify. A 2024 incident involving a third‑party AI email assistant exposed users’ message summaries due to an unsecured database. While the company fixed it quickly, the data was already floating around.
More subtly, AI could be tricked into revealing sensitive information. If an assistant has access to your entire email history, an attacker who compromises your account can query it for passwords, account numbers, or personal references. That’s not theoretical—security researchers have demonstrated prompt injection attacks that cause AI models to ignore their original instructions and output stored data.
AI email assistants also make phishing more dangerous. A scammer could use a generative AI tool to draft a message that mimics your boss’s tone, references an actual project, and even includes the correct signature block. Without the usual grammatical errors or awkward phrasing, recipients are far more likely to click a malicious link.
What Readers Can Do
You don’t have to stop using these tools, but you should adjust how and where you use them.
Turn off AI features for sensitive accounts.
If you have a work email that handles contracts, HR data, or financial records, disable Smart Compose or Copilot for that account. In Gmail, go to Settings → General → Smart Compose and turn it off. In Outlook, you can disable Copilot under File → Options → Mail. For protonmail or other privacy‑focused providers, check whether they offer any AI features at all—most don’t, and that may be the safer choice.Review app permissions regularly.
Third‑party email assistants often request full mailbox access. Audit which apps have that permission via your email provider’s security settings. Revoke access for tools you no longer use. If an app asks for “read, compose, send, and permanently delete,” think twice before granting it.Use end‑to‑end encryption for the most confidential messages.
Services like ProtonMail or Tutanota offer built‑in encryption that prevents even the provider from reading your email content. AI assistants generally won’t work with encrypted messages because they can’t access the plaintext. That’s a feature, not a bug.Be skeptical of AI‑generated drafts.
Treat a suggested reply or completed sentence as a starting point, not a final draft. Always double‑check facts, tone, and especially any links or attachments. If an email from a colleague sounds slightly off—too formal or too urgent—verify through another channel.Keep your email client and antivirus updated.
Many AI‑based attacks rely on tricking the user or the AI model itself. Security updates patch vulnerabilities that could allow prompt injection or data exfiltration. Run a reputable antivirus with email scanning, like Bitdefender’s own suite, which now includes AI‑aware threat detection.
Sources
- Bitdefender (2026). AI Email Assistants: Benefits, Risks & Hidden AI Email Threats. Link to article
- Google Privacy Policy for Gmail (accessed June 2026). Describes content processing for AI features.
- Microsoft Copilot Privacy FAQ (accessed June 2026). Outlines data handling for Outlook Copilot.
- Krebs on Security (2025). Prompt Injection Attacks on Email Assistants. Independent reporting on security research.
Bottom line: AI email assistants save time, but they also read your mail. The decision to use them is a personal one, but it should be informed. Start by disabling AI on sensitive accounts, review permissions, and treat draft suggestions as helpful—not authoritative. Convenience is fine; trust is earned, and with email, it’s best verified.