Network and email security Singapore: close the open doors
Attackers often get in through an old firewall, an open remote connection, a flat office network or a convincing email. We close those doors: firewall rules, separate networks for guests and cameras, safer remote access, and email security. Singapore offices get a written record of every change, ready for auditors and insurers.
Who asks for it, and what it shows them
The questions people ask you, and what this answers.
- Regulators“Were reasonable security arrangements in place?”A firewall, patched edge devices and controlled remote access support the s24 Protection Obligation.Singapore Statutes Online (PDPA), read 12 Oct 2026
- Insurers“Is remote access secured and protected by multi-factor sign-in?”Insurer proposal forms ask whether all remote access is secured and whether multi-factor sign-in is mandatory for remote and remote desktop access.MSIG Insurance (Singapore) Pte Ltd, read 12 Oct 2026
- Insurers“Is your data on a flat network?”Insurer proposal forms ask this directly. A segmented network lets you answer no.MSIG Insurance (Singapore) Pte Ltd, read 12 Oct 2026
- Management“Is our guest Wi-Fi separate from our systems?”The Cyber Security Agency’s Cyber Essentials calls for upgrading weak Wi-Fi security to WPA2 or WPA3 and keeping IoT devices on a separate network.Cyber Security Agency of Singapore (CSA), read 12 Oct 2026
PDPC fined the Academy of Medicine Singapore S$9,000 (June 2024) after a ransomware attack. Its firewall software had not been patched since July 2021, and attackers moved across its servers over remote desktop. PDPC’s directions included network segregation and annual security reviews.
Personal Data Protection Commission (PDPC), read 12 Oct 2026What you get
- Firewall and router settings reviewed and tightened
- Guest Wi-Fi, cameras and office PCs on separate networks
- Remote access behind two-factor login, with direct remote desktop closed
- Email filtering and sender checks that stop spoofed emails
- A record of every change, for auditors and insurers
- A firewall and remote access configuration record
- A dated record of the changes made
An unpatched firewall and an admin account without two-factor login cost a leasing firm S$82,000. PDPC, 2023.
How it works
- You
Give us access to your firewall, Wi-Fi and email admin, with your IT contact.
- Us
We review the set-up, agree changes with you and apply them in planned windows.
- Result
Fewer ways in, separate networks, and email that is harder to fake.
Common questions
What is network hardening?
Reducing the ways into your network: removing default settings, closing unused ports, updating firmware, separating networks (segmentation), and putting multi-factor authentication (MFA) on remote access. Each step makes common attacks harder.
How do we stop fake emails using our name?
Publish three email records for your domain: Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM) and Domain-based Message Authentication, Reporting and Conformance (DMARC). Receiving servers can then reject emails that pretend to come from you. We set them up and check the reports.
How much does network hardening cost?
The fee depends on the number of sites, firewalls, Wi-Fi networks and email domains, and how old the equipment is. You get a fixed-fee proposal after a short scoping call. Government grants may cover part of the cost. We check at your first call. Tell us your scope in 5 minutes and you get a fixed-fee proposal within 2 working days: Scope your project
Does network security matter under the PDPA?
Yes. The Personal Data Protection Act (PDPA) requires reasonable security for personal data. The Personal Data Protection Commission (PDPC) has penalised a firm for an unpatched firewall and remote access without two-factor login.
Latest PDPC case on this topic · 2026-09-21 · Education and childcare · Voluntary undertaking
A critical firmware flaw on a perimeter firewall gave attackers administrator access and a path to files holding student and staff data; apply firmware fixes promptly.
Read the PDPC decision of 21 September 2026, on pdpc.gov.sg (opens in a new tab)Compliance is black and white. Your business isn’t.
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Download a one-page brief for your management or board (PDF, 68 KB)