Zuri Njoku Shares 7 Principles of Zero Trust Security Explained
                     Zuri Njoku 
Shares 7 
Principles of 
Zero Trust 
Security 
Explained
Cyber threats are becoming 
smarter every day, and old 
security methods are no longer 
enough. Instead of trusting 
anything just because it’s inside 
the network, Zero Trust Security 
uses a safer method: trust nothing 
until it is checked. Here, 
Zuri Njoku explains the seven 
main principles of Zero Trust and 
how they help keep systems 
protected. Each principle works 
together to make sure trust is 
earned, not assumed.
Never Trust, 
Always Verify
Zero Trust starts with one basic idea: 
no one should be trusted 
automatically. Every time a person or 
device wants to access something, 
the system must check who it is and 
whether it is allowed. This helps stop 
unwanted access, even from inside 
the network.
Least Privilege 
Access
This principle gives users and systems 
only the access they truly need. By 
1
limiting permissions, organizations can 
reduce the harm that could happen if a 
password is stolen or a system is 
misused. With only the necessary 
access, there is less risk of major 
damage.
Micro-
Segmentation Instead of making the whole 
network open, Zero Trust 
divides it into smaller, 
separate sections. Each 
section has its own rules and 
checks. If a hacker gets into 
one part, they cannot easily 
move to other parts. This 
helps contain problems and 
protect important information.
Continuous 
Monitoring and 
Validation
In Zero Trust, security is always 
active. The system constantly 
watches user behavior, device 
activity, and events in real time. By 
doing this, it can quickly notice 
anything unusual or suspicious and 
take action before it grows into a 
bigger issue.
Multi-Factor 
Authentication
Strong identity checks are essential in 
Zero Trust, and multi-factor 
authentication is a key part of this. It 
requires users to prove who they are in 
more than one way such as a password 
plus a code, fingerprint, or mobile app 
approval. Even if a password is stolen, 
extra steps help keep accounts safe.
Device and 
Endpoint 
EVveeryr dievfiicec taryintgi too cnonnect must 
meet security standards. The system 
1
checks things like updates, security 
settings, and overall device health. If a 
device does not follow the rules, it 
cannot access the network. This 
prevents risky or outdated devices 
from causing problems.
Assume 
Breach This principle means always 
acting as if a security breach 
could already be happening. 
Instead of waiting to react, the 
system stays ready to detect 
and stop threats at any time. 
By assuming danger may be 
present, organizations stay 
alert and respond faster to 
keep their data safe.