What to Know Before Using AI Email Assistants: Benefits and Hidden Risks

Intro

If you use Gmail, Outlook, or Apple Mail, you’ve likely noticed new AI-powered features appearing in your inbox. Smart Compose suggests sentences as you type. Copilot in Outlook drafts entire replies. These tools promise to save time, but they also raise questions about privacy and security. Before you turn them on, it’s worth understanding what they do with your messages—and what risks come with the convenience.

What Happened

Major email providers are embedding generative AI directly into their platforms. Google’s Smart Compose and Help Me Write, Microsoft’s Copilot for Outlook, and Apple’s summarization in iOS Mail are just a few examples. A recent article from Bitdefender outlines both the productivity gains and the potential threats, including AI-generated phishing emails that closely mimic real contacts, accidental data leaks through third‑party AI tools, and the risk of email data being used for model training if privacy settings aren’t adjusted.

These features work by analyzing your emails—past messages, writing style, calendar data, even attachments—to generate suggestions. That data is processed either on the provider’s servers or routed through additional AI services. While companies publish privacy policies, the degree of control users have over what is shared varies.

Why It Matters

The benefits are real. AI assistants can cut reply time, flag important messages, and help you draft clearer emails. For many professionals, that’s a tangible productivity boost. But the same technology that learns from your inbox can also be used against you.

Here are the main concerns:

  • Data exposure. When you use an AI email assistant, your emails are processed by algorithms that may be hosted on cloud servers outside your direct control. Some services let you opt out of using your data for training; others do not. If a third‑party AI plugin is involved, your messages could pass through systems with different privacy safeguards.

  • AI‑powered phishing. Attackers now use generative AI to craft convincing messages that copy a colleague’s writing style, reference past conversations, and even include fake voice or video clips. These scams are harder to spot than older phishing attempts because the language is natural and the context is tailored.

  • Accidental leaks. Autocomplete or smart‑reply features have been known to suggest content from previous emails that should not have been shared—like a draft that includes a confidential detail from a different thread. A moment’s inattention can result in a serious data breach.

  • Hidden threats in email threads. Malicious actors can embed instructions into emails that an AI assistant might interpret as a command. For example, a hidden text could prompt the assistant to forward a message or insert a link. Security researchers have described this as prompt injection for email.

What Readers Can Do

You don’t have to give up AI email tools entirely, but you should take a few steps to reduce risk.

  1. Review privacy settings. In Gmail, go to Settings → General → Smart Compose and turn off personalization if you don’t want Google to learn from your writing. In Outlook, check the data privacy dashboard to limit Copilot’s access to your mailbox. Apple’s mail summarization runs on‑device, which reduces data sharing, but third‑party apps may not.

  2. Limit what the assistant can see. If you use a plugin or third‑party AI assistant (like ChatGPT or Claude integrated into your email), grant the minimum permissions needed. Avoid giving it full read‑and‑write access unless you are sure you trust the provider and understand their data policy.

  3. Be skeptical of unusual requests. AI‑generated phishing often looks polished. If an email asks you to transfer money, share credentials, or open a suspicious link—even if it seems to come from a familiar name—verify through another channel. Double‑check the sender’s actual email address, not just the display name.

  4. Turn off AI suggestions for sensitive accounts. For work or personal accounts that handle confidential information, consider disabling smart replies and auto‑draft features. You can always compose manually.

  5. Use security tools. A robust spam filter, two‑factor authentication, and a password manager remain essential. Some security suites now include AI‑specific threat detection for email.

Sources

  • Bitdefender, “AI Email Assistants: Benefits, Risks & Hidden AI Email Threats” (2025)
  • General feature documentation from Google, Microsoft, and Apple (publicly available privacy policies)

This article is based on publicly available reports and common security practices. The risks mentioned are evolving; the best defense is to stay informed and adjust settings as providers change their features.