Cyber defence, engineered in Bangladesh

Defend today.
Stay ahead
of tomorrow.

We help ambitious organisations find vulnerabilities, monitor threats, and meet compliance—before risk becomes disruption.

Scroll to explore
One connected security practice
01Find real exposure
02Detect and respond
03Build lasting assurance
DHAKA · BANGLADESH ATTACK / DEFEND / COMPLY
Explore services
People
×
Process
×
Technology

01 / CORE SERVICES

Three disciplines.
One resilient business.

Offensive testing, continuous defence, and practical governance—delivered as one connected security programme.

01

OFFENSIVE SECURITY

VAPT

See your organisation through an attacker's eyes. We uncover, validate, and prioritise weaknesses across your digital estate.

Vulnerability AssessmentPenetration TestingRed TeamingWeb & Mobile VAPT
↗
02

ACTIVE DEFENCE

Managed SOC

Always-on monitoring and expert-led response that turns noisy telemetry into decisive action—on-premise or remote.

SOC Implementation24/7 MonitoringOn-Prem Managed SOCRemote Managed SOCDark Web Assessment
↗
03

ASSURANCE & COMPLIANCE

GRC

Build trust without drowning in paperwork. We translate standards into controls that work for your people and business.

ISO 27001 ISMSPCI DSSIT AuditRisk AssessmentPolicy Development
↗
Continue to Why BIG3
THREAT LANDSCAPELIVE

02 / WHY BIG3

Local context.
Global standards.

Security is not a product you install—it is a capability you build. Our specialists combine global frameworks with an understanding of Bangladesh's business and regulatory landscape.

01

Built for your risk

No recycled reports. Every engagement reflects your systems, sector, and priorities.

02

Action over alarm

Clear findings, business impact, and practical remediation your team can act on.

03

One accountable team

From first assessment to daily operations, our experts stay close and accountable.

04

Evidence that matters

Board-ready reporting and audit evidence, without losing the technical detail.

03 / TECHNOLOGY

Powered by the tools
teams already trust.

We integrate industry-leading platforms into a security stack designed around your environment—not the other way around.

T
TenableExposure management
01
N
NessusVulnerability scanning
02
◇
Microsoft SentinelCloud-native SIEM
03
Q
QualysAsset & risk visibility
04
Continue to How we work

04 / HOW WE WORK

Clear scope.
Useful outcomes.

Every engagement starts with your environment and ends with actions your team can own.

01 / DISCOVER

Understand your risk

We agree on objectives, critical assets, constraints, and the decisions the work needs to support.

02 / EXECUTE

Find the real signal

Specialists test, investigate, or assess with evidence, context, and regular communication.

03 / IMPROVE

Move with clarity

You receive prioritized findings, accountable next steps, and support to verify progress.

Continue to Contact our team

START A CONVERSATION

Your next incident
doesn't have to be
a surprise.

Tell us what keeps you up at night. Our security team will help you map the next practical step.

info@big3infosec.com ↗Or request a consultation →