Opening the security report for www.cloud.microsoft
www.cloud.microsoft
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www.cloud.microsoft
Is www.cloud.microsoft Safe? Security Assessment | CyStack
www.cloud.microsoft
Microsoft 365 Copilot - Sign in
Draft in Word, analyze in Excel, and build decks in PowerPoint with AI that delivers finished work. Copilot is integrated into the Microsoft 365 (formerly Office) apps you use every day.
Industry
Computers, Electronics and Technology / Programming and Developer Software
Origin
United States
Global rank
#26
Rank in United States
#17
Updated at
U96.1/100
Security level
UnratedProvisional
Data confidence
Medium
Scope checked
100%
The higher the score, the more externally observable protections the system has recorded. This page does not certify that the website is reputable, legitimate, or completely free of vulnerabilities.
Is the website “www.cloud.microsoft” safe?
As of August 26, 2026 at 05:05, www.cloud.microsoft has a security score of 96.1/100 (grade U – “Unrated”), but this result is provisional because some required evidence is incomplete. CyStack’s automated assessment recorded 4 issues to review after completing 100% of applicable checks. The website owner should address “Allowed browser content (CSP)” first, then review the remaining items in order of impact.
Does www.cloud.microsoft show known scam, phishing, or malware signals?
At assessment time, CyStack did not find www.cloud.microsoft or related infrastructure on any scam, phishing, or malware warning list after checking 5 online reputation sources. This result reflects external observations; it does not guarantee absolute safety or verify the organization’s legal status or reputation.
Potentially exposed domain email addressesChecks infostealer data for email addresses ending in @cloud.microsoft, the registered domain of the assessed website www.cloud.microsoft. A record is not counted merely because someone visited or signed in to the website.0 Matching email exposure records
0Matching email exposure records
0Related infected devices (estimated)
No exposure record was found for an email address ending in @cloud.microsoft in the available data. This does not guarantee that an exposure has never occurred.
Frequently asked questions
What affects the security of www.cloud.microsoft?
A valid SSL certificate still does not prove that www.cloud.microsoft is safe, legitimate, or free of scam signals. For a more complete assessment, this report also checks phishing and malware, exposed email records, IPs and open ports, subdomains, technologies, and CVEs that may apply to observed versions.
Does www.cloud.microsoft use HTTPS, and is its SSL certificate valid?
www.cloud.microsoft used a valid SSL certificate at assessment time, valid until November 4, 2026. This status may change when the certificate expires or the server configuration changes.
Have @cloud.microsoft email addresses appeared in exposed data or information-stealer (infostealer) logs?
Data sources
Data compiled from CyStack cybersecurity monitoring systems
CyStack compiles scan results from its internal cybersecurity monitoring systems, including CyStack VulnScan and CyStack Threat Intelligence, together with publicly available Internet data. The assessment only observes and analyzes information already available; it does not attempt unauthorized access, test passwords, send exploit code, or change or disrupt the assessed system.
These 3 failed checks or warnings have the greatest impact on the result for www.cloud.microsoft.
Allowed browser content (CSP)The CSP on the inspected root HTML response contains a broad, unsafe, or missing script-source control recognized by this bounded check.High
Why it matters
Content Security Policy (CSP) limits where scripts, styles, frames, and other browser content may come from. A strong policy reduces the impact if an attacker manages to inject content into a page.
What to do
Define only the sources the application needs, test the policy before activating it, and avoid broad wildcard (*) rules, unsafe-inline, and unsafe-eval where possible.
Scope of this check
This check only evaluates the homepage response and content that the scanner could reach. Other pages and sign-in flows may use different settings.
Potentially sensitive subdomainsCyStack confirmed at least 549 active DNS subdomains of cloud.microsoft. 83 names may expose sensitive services; discovery was partial, so more may exist.Medium
Why it matters
Names containing admin, development, staging, VPN, database, or monitoring terms may point attackers toward valuable systems. A name alone does not prove exposure, but it identifies a surface that should be reviewed.
What to do
Remove obsolete DNS names and protect non-public systems with strong authentication, MFA, network allowlists, or a VPN.
Browser feature restrictions (Permissions-Policy)The inspected root HTML response has no explicit Permissions-Policy header; browser-defined default allowlists still apply to each feature.Low
Why it matters
Permissions-Policy can further restrict browser features such as the camera, microphone, and location for this page and embedded content. Each feature already has a browser-defined default allowlist, so an absent header does not mean that every feature is unrestricted.
What to do
Allow each sensitive browser feature only for the pages and trusted origins that require it, and disable the rest.
Discovered subdomains (549+)Subdomains of cloud.microsoft, the registered domain of the assessed website www.cloud.microsoft. Sensitive-looking names are shown first; individual subdomains have not been separately security-tested.Partial
Public web contextThe website title, description, industry and popularity.
Page title
Microsoft 365 Copilot - Sign in
Website category
Computers, Electronics and Technology / Programming and Developer Software
Description
Draft in Word, analyze in Excel, and build decks in PowerPoint with AI that delivers finished work. Copilot is integrated into the Microsoft 365 (formerly Office) apps you use every day.
Global rank
#26
Rank in United States
#17
Rank in industry
#1
Final URL
https://m365.cloud.microsoft/
Website rankings and industry category are based on data from Similarweb
This is a quick, point-in-time check from outside the organization. It can surface visible risks, but it does not replace penetration testing or an authenticated assessment.
No record associated with an @cloud.microsoft email address was found in the currently available data. This does not rule out incidents that have not been observed.
Which public IPs, services, and ports does www.cloud.microsoft expose?
The assessment observed 8 public IPs and 10 open ports for www.cloud.microsoft. An open port is not the same as a vulnerability, but the website owner should keep every public service updated and appropriately restrict access.
How many subdomains of cloud.microsoft have been discovered?
The assessment observed 549+ public subdomains of cloud.microsoft. This list can reveal additional entry points such as APIs, administration systems, or test environments, but it does not mean that every subdomain is risky.
Industry
Updated at 
United States
