SASE promises to make security easier, but the market is full of conflicting claims. It would slow everything down. You need years for implementation. For mid-sized organizations looking to modernize their security, separating fact from fiction has become a chore in itself.
This guide dissects the ten most persistent myths about SASE, based on technical analysis and market data from 2024-2026. Whether you are evaluating SASE for the first time or want to counter internal skepticism, reality is more practical than the noise suggests.
The short version: myth vs reality
| Myth | Reality |
|---|---|
| SASE introduces latency | SASE lowers latency compared with VPN backhaul |
| More PoPs means better performance | Quality and peering are more important than number |
| VPN is good enough for hybrid work | VPN architecture does not fit modern work patterns |
| Implementation takes years | Rollout takes weeks to months, not years |
| Too complex for small IT teams | One console is easier than multiple separate tools |
| Single-vendor means vendor lock-in | Integration lowers complexity, market chooses consolidation |
| Buying SASE = Having Zero Trust | Zero Trust requires conscious configuration, SASE provides the tools |
| On-premise firewalls are obsolete | Local segmentation remains essential for OT and east-west traffic |
| Cloud security is less secure | Cloud-native security is often more secure than unpatched hardware |
| SASE costs more than current stack | Total cost of ownership falls lower than legacy |
The performance myths
Network administrators often assume that an additional cloud layer between users and applications slows everything down. Logical, at first glance. But the equation no longer holds true. The direct connection they think of simply no longer exists for most organizations.
Myth 1: SASE introduces latency and slows down the user experience
This is probably the most commonly heard objection. IT teams fear that routing traffic through a cloud inspection point breaks video conferences and frustrates remote workers.
Reality looks different.
In a traditional VPN setup, traffic from a home worker travels through an encrypted tunnel to headquarters. There it is decrypted, inspected, and still travels to the Internet to reach a SaaS application like Microsoft 365. The response takes the same inefficient route back. This “hairpinning” or “trombone effect” adds enormous distances to any packet.
Onderzoek toont dat legacy VPN-backhaul 90 tot 180 milliseconden extra latency toevoegt voor gebruikers die cloudapplicaties benaderen. SASE-architecturen gebruiken local breakout. Verkeer gaat naar het dichtstbijzijnde Point of Presence, wordt daar geïnspecteerd, en routeert rechtstreeks naar de cloudprovider. Omdat deze PoPs gepositioneerd zijn nabij grote internet exchanges en cloud datacenters, daalt de totale latency vaak naar 25 tot 45 milliseconden.
Modern unified SASE platforms also use single-pass processing. Instead of sending traffic through a chain of separate security appliances, all inspection happens simultaneously in memory. Processing time is measured in microseconds, not milliseconds. For Teams and Zoom calls, the difference between VPN backhaul and SASE local breakout is the difference between choppy audio and smooth conversations.
Myth 2: More Points of Presence means better performance
Vendors like to engage in PoP competitions. “We have 150 PoPs worldwide, they only have 80,” he says. Customers logically assume that more locations means there is always one nearby.
The number on the marketing page says little. A PoP is only as good as its throughput and its connectivity to the applications your users actually need.
Many vendors, especially those that scaled quickly, run virtual PoPs on public cloud infrastructure such as AWS or Azure. These are subject to “noisy neighbor” effects of shared resources and variable performance. If a PoP cannot handle SSL decryption at line speed, queuing delays occur no matter how close it is geographically.
What matters more is peering density. A vendor with 50 physical PoPs that have direct cross-connects in the same data centers as Microsoft, Google and Salesforce typically outperforms a vendor with 500 virtual PoPs that connect via standard ISP transit.
For a European mid-sized organization, it is irrelevant whether a vendor has 50 PoPs spread across Asia. What matters is quality presence in Amsterdam, Brussels, Frankfurt and where your employees actually work. Regional providers with strong European infrastructure often deliver better performance than global giants with thin local coverage.
Myth 3: VPN technology is good enough for hybrid work
“Our VPN has been working for ten years, is in our firewall license, and everyone knows how it works.” This status quo bias is SASE’s biggest competitor in the midmarket. The VPN feels free and familiar.
But VPN technology was designed when 90 percent of applications ran on-premises and 10 percent of employees worked remotely. That ratio has been reversed. The architectural mismatch creates real problems.
Legacy VPN protocols such as IPsec and SSL VPN over TCP handle packet loss and latency poorly. When a mobile user switches between Wi-Fi and mobile network, or works on an unstable connection, the TCP window collapses. The result: constant “reconnecting” messages and aborted sessions.
VPN concentrators are subject to hardware limits. During peak usage, the firewall CPU maximizes and everyone experiences packet loss. SASE is cloud-native and scales elastically. There is no hardware bottleneck.
The security model also differs fundamentally. VPNs grant network-level access. Once connected, users often have visibility into the entire subnet. If a compromised device connects via VPN, malware can spread laterally to servers. SASE with ZTNA grants application-level access. Users see specific applications for which they are authorized, not the network. The blast radius of a breach shrinks dramatically.
The complexity myths
The perception that SASE requires huge IT teams and multi-year projects comes from early enterprise marketing. Modern platforms designed for the midmarket work differently.
Myth 4: SASE implementation requires a multi-year rip-and-replace project
The story suggests that SASE means replacing all firewalls, restructuring IP schemes, and installing new hardware everywhere. A 12- to 24-month project with substantial risk.
This misses how SASE technology works. The architecture is inherently modular and supports phased adoption.
Organizations can start replacing VPN with ZTNA for remote users without touching the internal network architecture. This can be done in days. Secure Web Gateway functionality can then be added for Internet security. SD-WAN rollout to branch offices comes later, often timed along with natural hardware refresh.
Zero Touch Provisioning makes physical deployment simple. A device is shipped to a site, plugged in by non-technical staff, and automatically retrieves its configuration from the cloud. Deployment time per site drops from days to minutes.
For contractor or BYOD scenarios, browser-based access completely eliminates software installation. Users can securely access specific applications within minutes.
Market data shows that midsize organizations typically complete a basic functional SASE deployment, covering ZTNA and SWG, within 30 to 90 days. This is a software-defined transition, not a hardware migration.
Myth 5: SASE is too complex for midmarket IT teams
“We have three IT generalists and no CISO. We can’t manage complex network policies.” The fear of policy sprawl and deep network expertise holds smaller organizations back.
Complexity in SASE is a design choice, not an inherent property. Enterprise-centric platforms prioritize maximum configurability. Midmarket platforms prioritize simplicity and automation.
The core value proposition of unified SASE is to consolidate separate consoles for VPN, firewall, proxy, DLP and SD-WAN into a single management interface. For a small team, managing one set of user rules in one dashboard is exponentially easier than juggling five tools that don’t share data.
Platforms designed for the midmarket often come with Zero Trust by Default settings. The system starts closed and access must be granted explicitly, rather than administrators building complex rules to block things. This reduces configuration errors and lowers the expertise threshold.
About 63 percent of organizations use an MSP for SASE deployment. For midmarket companies, SASE is often consumed as a service. The complexity of underlying management sits with the partner while the customer consumes connectivity and security benefits.
Myth 6: Single-vendor SASE creates vendor lock-in
Legacy vendors and skeptics claim that “nobody does everything right” and advocate best-of-breed approaches with separate SD-WAN, SWG and ZTNA vendors. They warn that choosing one vendor means lock-in and mediocre functionality.
The market is moving decisively toward consolidation because the integration burden of multi-vendor approaches has become unsustainable.
In a multi-vendor setup, components communicate through APIs. When an API changes or breaks, security gaps and operational blind spots are created. In a single-vendor platform, all components share the same codebase and data lake. Network and security data can be correlated for better insights and faster troubleshooting.
Analysts predict that by 2025 one-third of new SASE deployments will be single-vendor, three times the 2022 percentage. For midmarket organizations, the operational advantage of one vendor, one invoice and one policy engine outweighs the theoretical superiority of specialized niche tools. “Good and integrated” beats “best-of-breed and fragmented.”
Single-vendor SASE solutions are growing at 21 percent a year while multi-vendor approaches are stagnant. The market is choosing simplicity.
The security myths
Security is the “S” in SASE, but marketing buzzwords create confusion. Zero Trust is a philosophy, not a feature you turn on. And cloud-native does not mean insecure.
Myth 7: Buying SASE automatically delivers Zero Trust
“We bought a SASE license, so we are now Zero Trust.” Organizations often treat Zero Trust as a feature similar to antivirus: something you turn on and forget about.
Zero Trust is a strategy based on “never trust, always verify.” SASE provides the tools. Implementation requires conscious configuration.
A SASE platform can be configured to work exactly like an old VPN, with broad access after initial authentication. Achieving Zero Trust means defining granular policies. Marketing team members on managed devices can access the CRM, but only from specific countries and with MFA.
True Zero Trust requires continuous validation of context. Is the antivirus up to date? Is user behavior normal? If a SASE solution checks only at login and leaves sessions open indefinitely, it is not Zero Trust. The platform must support continuous adaptive risk assessment.
Platforms with Zero Trust by Default settings help by starting from “deny all” rather than “allow all.” This forces organizations to consciously think about access policies rather than defaulting to overly permissive configurations.
Myth 8: On-premise firewalls are obsolete
The “the perimeter is dead”-narrative leads some to conclude that all local firewalls can go into recycling. This ignores east-west traffic and industrial environments.
Although perimeter firewalls for north-south traffic are shifting to the cloud via FWaaS, local segmentation remains critical.
Industrial machines, PLCs, printers and medical equipment cannot run SASE agents. A purely cloud-based solution leaves these devices vulnerable. They need local hardware for security and segmentation.
The solution includes network controllers or hardware gateways that wrap agentless devices in a Zero Trust layer before connecting to the network. This bridges the gap between IT and OT environments that many pure cloud vendors overlook.
SASE secures access to the network. Micro-segmentation stops lateral movement within VLANs. These approaches complement rather than replace each other.
Myth 9: Cloud-native security is less secure than on-premises hardware
“I need to see flashing lights to know my data is safe.” Especially in regulated industries such as legal services and financial services, there is fear around data sovereignty and the idea that cloud data is unprotected.
In practice, cloud-native SASE vendors have security budgets and R&D teams that far exceed any individual midmarket organization can maintain.
Most breaches of on-premises firewalls happen because firmware was not patched. Consider recent high-profile SSL VPN vulnerabilities. In a SASE model, the vendor patches infrastructure globally. Customers are immune to unpatched edge firmware vulnerabilities.
For European organizations, the location of data processing matters because of GDPR and NIS2. European SASE providers can guarantee that logs and inspection remain within the EU and comply with strict privacy laws. This addresses concerns about surveillance under foreign laws such as the US Cloud Act.
The cost myth
Myth 10: SASE costs more than the existing network stack
“We’ve already paid for our firewalls and they’ve depreciated. Why should we pay a monthly per-user rate?” This sticker shock ignores the hidden operational costs of legacy infrastructure.
SASE is a total cost of ownership calculation, not a unit cost comparison.
MPLS connections are expensive per Mbps. SASE allows organizations to replace MPLS with cheaper broadband Internet while SD-WAN delivers reliability and security. Connectivity cost savings often reach 40 to 60 percent, which often funds the entire SASE project.
The hidden costs of legacy IT are substantial. Time spent by administrators manually updating rules, managing VPN certificates and troubleshooting connectivity issues adds up. SASE centralizes management and can reduce operational overhead by up to 40 percent.
Instead of separate licenses for firewall, VPN, Web filter, SD-WAN and DLP, SASE bundles everything into one rate. The bundled license is often 15 to 25 percent cheaper than the sum of individual point solutions.
The average cost of a data breach is $4.88 million. SASE’s ability to limit blast radius through Zero Trust functions as risk mitigation that legacy VPNs cannot provide.
| Cost Category | Legacy MPLS/VPN | Modern SASE | Impact |
|---|---|---|---|
| Connectivity | High cost per Mbps | Low cost, high bandwidth | 40-60% savings |
| Hardware (CapEx) | Frequent refresh | Minimal or none | Shift to OpEx |
| Management (OpEx) | Complex, many hours | Integrated, automated | 30-40% savings |
| Security tools | Multiple Licenses | One bundled license | 15-25% savings |
| Risk | High (lateral movement) | Low (Zero Trust built in) | Risk Reduction |
What this means for midmarket organizations
The myths about SASE come from an earlier era of networking, defined by hardware limitations, trusted perimeters and centralized control. The reality in 2025 is software-defined, Zero Trust and distributed.
For midmarket organizations, SASE is not a complexity myth. It is often the only architectural model capable of reconciling “access from anywhere” with “maximum security.”
Start with the VPN. The fastest gain is replacing legacy VPN with ZTNA for remote users. This delivers immediate performance and security improvements without disrupting the office network.
Choose simplicity. Find platforms specifically designed for midmarket organizations that abstract complexity, not watered-down enterprise products.
Prioritize sovereignty. For European organizations, choosing a vendor that meets GDPR and NIS2 requirements for data processing is not a nice-to-have but a necessity.
Don’t forget OT. Make sure the solution addresses devices that cannot run agents via gateways and inline isolation.
The question is no longer whether to move to SASE. It’s when, and with which partner.
Ready to cut through the noise?
Jimber delivers Real SASE in a single cloud-managed platform. Zero Trust by default, transparent pricing and a partner-first approach designed for midmarket organizations.
Book a demo and see how the myths do not match reality.
Frequently Asked Questions
Does SASE really improve performance compared to VPN? Yes. VPN backhaul adds 90 to 180 milliseconds of latency by routing traffic through headquarters. SASE local breakout typically lowers this to 25 to 45 milliseconds by processing traffic at nearby PoPs and routing it directly to cloud applications.
How long does SASE implementation actually take? Midmarket organizations typically complete basic ZTNA and SWG deployment within 30 to 90 days. This is a phased, software-defined transition, not a hardware replacement project.
Is SASE affordable for midmarket organizations? When you factor in total cost of ownership, including MPLS elimination, license consolidation and reduced operational overhead, SASE typically delivers 20 to 40 percent savings over three years compared to legacy stacks.
Do we still need on-premises firewalls with SASE? For north-south traffic, FWaaS in the cloud is increasingly replacing perimeter firewalls. For OT environments and micro-segmentation of east-west traffic, local controls remain important. SASE and local segmentation work together.
What about devices that can’t run agents? NIAC hardware and network controllers provide inline isolation for printers, IoT sensors and industrial equipment. These devices can be brought under Zero Trust controls without requiring agent software.
Does buying SASE mean we are automatically Zero Trust? No. SASE provides the tools, but Zero Trust requires conscious policy configuration with least-privilege access, device posture checks and continuous authentication. Platforms with Zero Trust by Default settings make this easier.
