Large distributed enterprises Zero-trust / VPN-replacement projects Regulated sectors like government Orgs consolidating many point security tools

Who is Zscaler not for?

Small teams needing simple web filtering Startups with no dedicated security admin Buyers wanting published, transparent pricing Anyone unwilling to manage a heavy client agent

shouldiuse.io

Zscaler Review

Depends

Should I use Zscaler?

Leading cloud enterprise security provider for zero trust - zscaler.com

Analyzed September 26, 2026 · 1 month ago

Buy if you're a large organization with security staff replacing VPNs, appliances, and legacy perimeter tools. Small teams without dedicated IT should pick a lighter, cheaper SSE tool.

Confidence

Medium. Based on 40+ public sources; snippets were truncated, so exact ratings and prices were not always visible.

Ratings

Value for money
Ease of use
Feature depth
Support quality
Security posture

Pricing

Quote-based, annual

Zscaler Internet Access (ZIA)

ModelQuote-based

Monthly feesNot disclosed

HardwareNot disclosed

Zscaler Private Access (ZPA)Quote-based, annual

Best for

Large distributed enterprises
Zero-trust / VPN-replacement projects
Regulated sectors like government
Orgs consolidating many point security tools

Not for

Small teams needing simple web filtering
Startups with no dedicated security admin
Buyers wanting published, transparent pricing
Anyone unwilling to manage a heavy client agent

Gotchas - check before you buy

high

Quote-based only; buyers report 2025 price hikes — negotiate multi-year terms hard

high

Deep platform lock-in: leaving means re-architecting all traffic policies and agents

medium

Validate post-sales support SLAs in the contract before signing

medium

Client Connector agent has shipped CVEs; keep endpoint patching disciplined

Pros

Broad 28-solution portfolio on one cloud security platform
Strong ratings on G2 and Gartner Peer Insights
ZPA praised for streamlining government access vs legacy VPN
Cloud-native with no appliances to maintain
Proven at scale with named public-sector and enterprise customers

Cons

Recurring sysadmin complaints about day-to-day experience
Opaque quote-based pricing with 2025 increases
Client Connector agent flaws enabled remote attacks (2026)
2025 supply-chain breach via Salesloft Drift exposed Salesforce data
Post-sales support quality openly questioned by prospective buyers

Sources & method

Analyzed September 26, 2026 - 14 sources - Active advisory program, but 2026 Client Connector CVEs and a 2025 Salesloft Drift supply-chain breach are on record.

official x2review x8security x2news x2

Client Connector DoS (CVE-2026-59565), Denial-of-service flaw in the Zscaler Client Connector endpoint agent.
Multiple Client Connector remote flaws, Improper input validation issues enabling remote attacks; patched via advisories.
2025 Salesloft Drift supply-chain breach, Token-based attack via Salesloft Drift exposed Zscaler Salesforce customer data.

Key stats

Value for money: 2/5
Rating
Quote-based, annual
Starting price
14
Sources
September 26, 2026
Analyzed

Value for money: 2/5. Quote-based pricing; 2025 price hikes reported
Ease of use: 3/5. ZPA praised; sysadmins report complexity
Feature depth: 5/5. 28-solution platform spanning SSE, ZTNA, AI security
Support quality: 2/5. Buyers publicly question post-sales support
Security posture: 3/5. Zero-trust leader; agent CVEs and 2025 breach

11,791+ Detected customer base companies detected using Zscaler (Bloomberry)
783 G2 reviews seller profile, rated 4+
2,553 Glassdoor employee reviews; 63% recommend figure
Quote-based Pricing model annual subscriptions; 2025 price increases reported

Pricing

Zscaler Internet Access (ZIA)

Quote-based, annual

Secure web gateway
Cloud firewall
Zero-trust internet access

Zscaler Private Access (ZPA)

Quote-based, annual

Zero-trust VPN replacement
Private app access
User-to-app segmentation

Security

Active advisory program, but 2026 Client Connector CVEs and a 2025 Salesloft Drift supply-chain breach are on record.

Client Connector DoS (CVE-2026-59565)Denial-of-service flaw in the Zscaler Client Connector endpoint agent.¹⁰
Multiple Client Connector remote flawsImproper input validation issues enabling remote attacks; patched via advisories.¹¹

2025 Salesloft Drift supply-chain breachToken-based attack via Salesloft Drift exposed Zscaler Salesforce customer data.

What users say

Large orgs praise the zero-trust scale while sysadmins grumble about complexity, cost, and support.

“How bad is Zscaler?”

Reddit, r/sysadmin

“I mostly hear complaints”

Reddit, r/sysadmin

“So what's everyone paying?”

Reddit, r/Zscaler

Alternatives

Compare Zscaler with each alternative.

dope.security
Direct SSE competitor publishing head-to-head Zscaler comparisons
Zscaler vs dope.security
Perimeter 81
Simpler SSE aimed at smaller teams than Zscaler's enterprise scale
NordLayer
Lightweight network security for SMBs without security staff
Zscaler vs NordLayer

Radware Cloud WAF
Focused web-app protection if you only need WAF, not full SSE

Companies that use it

City of Los Angeles
University of South Carolina
Careem

Full analysis

Based on 40+ public sources; snippets were truncated, so exact ratings and prices were not always visible.

Enterprise-grade zero-trust security: powerful at scale, overkill and quote-priced for small teams.

Methodology

Based on 40+ public sources; snippets were truncated, so exact ratings and prices were not always visible.

Read how a report is made.

Sources

Zscaler homepagezscaler.com
official
Zscaler Pricing and Planszscaler.com
official
G2 — Zscaler seller reviewsg2.com
review
Gartner Peer Insights — Zscalergartner.com
review
Reddit r/sysadmin — How bad is Zscaler?reddit.com
review
Reddit r/Zscaler — So what's everyone paying?reddit.com
review
FedTech — ZPA for government reviewfedtechmagazine.com
review
Venn — Zscaler platform overview (28 solutions)venn.com
review
NPI — Zscaler price increase analysisnpifinancial.com
news
SentinelOne CVE-2026-59565sentinelone.com
security
GBHackers — Client Connector flawsgbhackers.com
security
Cybersecurity Dive — Salesloft Drift breachcybersecuritydive.com
news
Bloomberry — Zscaler customer listbloomberry.com
review
Glassdoor — Zscaler employee reviewsglassdoor.com
review

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Zscaler Review

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