Proofpoint vs. Symantec
Threat actors target Symantec Email Security
Switch to Proofpoint to get ahead of email threats for good
Stagnant innovation and shrinking support
Once a trusted name, Symantec Email Security.cloud (formerly MessageLabs) has steadily declined since its 2019 acquisition by Broadcom. By shifting R&D and support to focus narrowly on a handful of strategic accounts, Broadcom left many long-standing customers behind. The result has been sweeping cost cuts, including layoffs impacting roughly 7% of the global workforce and the closure of multiple facilities. (MarketWatch, TechTarget, ARN)
The industry and Symantec customers have taken note:
"Too many false positives forced us to disable protections—and that’s how a credential phishing campaign got through."
—IT Project Manager, retail industry
"Even the spam filter misses messages, creating gaps in detection unless manually tuned."
—Symantec user on Broadcom Support Forum
“Delivery failures and unreliable click-time protection created more problems than they solved.”
—Security Operations Manager, finance industry
“Support and usability have dropped significantly after the Broadcom acquisition.”
—Symantec user on Infisign
“Their sync tool broke with password changes in Exchange Online—and support had no answers.”
—Symantec user on Broadcom Support Forum
How Symantec stacks up against Proofpoint
Falling behind on detection efficacy
Symantec Email Security.cloud has not kept pace with innovation in email threat detection. Customers report stagnant product development, limited AI investment, and gaps in protection against advanced threats, such as business email compromise (BEC) and credential phishing.
Proofpoint has delivered breakthrough innovations in Nexus AI, combining:
- Machine learning models that classify billions of daily messages
- Language models that understand intent and spot social engineering
- Relationship graphs that track trusted sender–recipient patterns
- Optical character recognition (OCR) and content analysis to uncover QR code phishing, image-based lures and malicious attachments
- Global threat intelligence curated by our researchers
This multilayered stack delivers 99.99% detection efficacy with one of the lowest false positive rates in the industry.
A heavy lift for security teams
Symantec workflows force analysts into manual triage, repetitive searches and limited reporting capabilities. User-reported emails often pile up in inboxes, requiring hours of manual investigation, and critical alerts are buried in noise—slowing time to detect and respond.
Proofpoint streamlines the analyst experience, reducing typical investigation click paths from 12+ down to just 3–4. With automated abuse mailbox handling, user-reported messages are automatically correlated with known threats, cutting remediation times by up to 70%. This gives you enriched context, prioritised insights and timelines that turn hours of work into minutes.
Falling out of trust and relevance
Symantec email security platform has declined in both customer trust and industry recognition. The product is absent from the 2024 Gartner Magic Quadrant for Email Security Platforms and the 2025 Forrester Wave for Email, Messaging, and Collaboration Security Solutions, reflecting reduced investment and innovation under Broadcom. Customers increasingly cite detection misses, service outages and poor support experiences as reasons for leaving.
Proofpoint is trusted by 83% of the Fortune 100 and more than 2.7 million organisations worldwide. Recognised by analysts for leadership and innovation, Proofpoint continues to invest heavily in AI, automation and analyst efficiency. This means you gain a partner with a clear roadmap and a proven track record of keeping pace with an ever-changing threat landscape.
Proofpoint vs. Symantec Email Security.cloud at a glance:
| Capabilities | Proofpoint | Symantec Email Security.cloud |
|---|---|---|
| AI-powered detection for BEC and phishing |
Yes
|
No
|
| Real-time global threat intelligence |
Yes
|
No
|
| Behavioural anomaly detection |
Yes
|
No
|
| Adaptive threat detection |
Yes
|
No
|
| URL and attachment protection |
Yes
|
No
|
| Account takeover protection |
Yes
|
No
|
| SOC analyst efficiency |
Yes
|
No
|
| Support experience |
Yes
|
No
|
| R&D investment and analyst recognition |
Yes
|
No
|
Smooth, low-risk migration from Symantec
Proofpoint has helped thousands of organisations replace outdated SEG tools such as Symantec Email Security.cloud with modern, flexible protection.
Our proven 5-step migration framework ensures a smooth transition:
1. Assess your current SEG and Microsoft 365 security coverage
2. Identify key protection gaps and operational pain points
3. Select your Proofpoint deployment model (SEG, API, hybrid)
4. Pilot and tune with coexistence support
5. Cut over confidently, supported by our global team of migration experts
Don’t settle for outdated email security
Legacy tools such as Symantec Email Security.cloud can no longer keep up with today’s threats or operational demands. Proofpoint delivers superior detection, smarter workflows and flexible deployment—backed by the trust of 83% of the Fortune 100.
Ready to make the switch?
See why leading enterprises are moving to Proofpoint.
Related resources
Blog
From Panic to Protection: A Smarter Way to Replace Your Symantec SEG
Solution Brief
Core Email Protection
Analyst Report
Proofpoint Named a Leader in 2024 Gartner® Magic Quadrant™ for Email Security Platforms
Solution Brief
Moving from a Legacy Email Gateway to Proofpoint: Guide