BestRegards vs Abnormal AI (formerly Abnormal - Cloud Email Security)

BestRegards is an innovative Chrome extension designed to enhance your productivity by automating the process of writing emails and messages. With its advanced AI capabilities, BestRegards can understand the context of the emails you receive and generate personalized replies in seconds. Whether you're dealing with professional correspondence or casual messaging, BestRegards simplifies the task, allowing you to reply quickly and effectively. It supports all main languages and works seamlessly with any email service, particularly Gmail, where it offers enhanced context detection.

Abnormal AI stops email, identity, AI, and insider threats by learning what normal communication looks like across your organization. Its Attune foundation model builds per-identity baselines for people, vendors, and relationships, then catches business email compromise, vendor fraud, account takeover, and AI-crafted phishing that slip past signature-based gateways. More than 4,500 organizations use it, including over 25% of the Fortune 500.

Where most email tools rely on known threat feeds or generic LLM classifiers, Abnormal trains purpose-built behavioral models on production attack data. In an internal benchmark against GPT-4.1 and Gemini 3.5 Flash, it logged 46?? fewer missed attacks and 60?? fewer false positives on human-confirmed samples.

Security teams at large enterprises deploy Abnormal through cloud APIs to Microsoft 365 and Google Workspace in about 60 seconds with no MX record changes. The platform spans inbound email security, messaging protection for Slack and Teams, identity threat defense, AI tool governance, and infiltration prevention. Unlike general-purpose LLM email classifiers, it delivers signal-level reasoning behind each detection instead of opaque block-or-allow verdicts.