Is www.facebook.com Safe? Security Score 90.2/100 | CyStack
www.facebook.com
Facebook
log into facebook to start sharing and connecting with your friends, family, and people you know.
Industry
Computers, Electronics and Technology / Social Networks and Online Communities
Origin
United States
Global rank
#3
Rank in United States
#3
Updated at
A90.2/100
Security level
Excellent
Data confidence
High
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.facebook.com” safe?
As of August 26, 2026 at 18:05, www.facebook.com has a security score of 90.2/100 (grade A – “Excellent”). CyStack’s automated assessment recorded 9 issues to review after completing 100% of applicable checks. The website owner should address “Supported TLS versions” first, then review the remaining items in order of impact.
Does www.facebook.com show known scam, phishing, or malware signals?
At assessment time, CyStack did not find www.facebook.com 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 @facebook.com, the registered domain of the assessed website www.facebook.com. A record is not counted merely because someone visited or signed in to the website.10,000+ Matching email exposure records
10,000+Matching email exposure records
19,444Related infected devices (estimated)
These matching email records were observed previously, but they may already have been addressed or may no longer be valid. The device count estimates infected devices associated with these email records; it is not the number of devices owned by the organization.
The counting limit was reached, so the actual number may be higher.
Frequently asked questions
What affects the security of www.facebook.com?
A valid SSL certificate still does not prove that www.facebook.com 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.facebook.com use HTTPS, and is its SSL certificate valid?
www.facebook.com used a valid SSL certificate at assessment time, valid until September 3, 2026. This status may change when the certificate expires or the server configuration changes.
Have @facebook.com 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.
TLS 1.0 and TLS 1.1 use outdated security designs and are no longer accepted by modern standards. Leaving them enabled allows older, weaker connection methods.
What to do
Disable TLS 1.0 and TLS 1.1, support TLS 1.2 securely, and enable TLS 1.3 where possible.
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.
Certificate expiry and validityThe certificate is currently valid but expires in 8 day(s), at 2026-09-02T23:59:59Z.High
Why it matters
A certificate works only between its start and expiry dates. An expired, not-yet-valid, or soon-to-expire certificate can trigger browser warnings and interrupt access to the website or API.
What to do
Use automatic renewal, monitor renewal failures, and alert the responsible team well before expiry.
Diagnostic information
Leak evidenceMost recent observation:
Email addressRelated infected deviceInfection evidenceRecorded time
Email addressr************@facebook.comRelated infected deviceD************** (Windows 11 Pro 25H2 (Build 26200))IOC reference: IOC-EB1EFBAA54Infection evidenceVidarObserved application: Google Chrome (Profile 1)Recorded timeEmail addressg**********@facebook.comRelated infected deviceNo safely shareable device details are available for this record.IOC reference: IOC-99C35F63D1Infection evidenceVidarRecorded timeEmail addresse*****************@facebook.comRelated infected deviceN******* (Windows 11 Pro 25H2 (Build 26200))MexicoIOC reference: IOC-536348D1E4Infection evidenceVidarObserved application: Google Chrome (Default)Email addresst************@facebook.comRelated infected deviceS******* (Windows 11 Home Insider Preview (10.0.29580) x64)GermanyIOC reference: IOC-8F6C629B05Infection evidenceRemus StealerObserved application: Edge 148.0.3967.54Email addresss**************@facebook.comRelated infected deviceS*********** (Windows 11 Home Single Language 25H2 (Build 26200))IOC reference: IOC-F0FD3783CAInfection evidenceVidarObserved application: Microsoft Edge (Default)Recorded time
At most 10 recent redacted records are shown to protect sensitive information.
Discovered subdomains (703+)Subdomains of facebook.com, the registered domain of the assessed website www.facebook.com. 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
Facebook
Website category
Computers, Electronics and Technology / Social Networks and Online Communities
Description
log into facebook to start sharing and connecting with your friends, family, and people you know.
Global rank
#3
Rank in United States
#3
Rank in industry
#1
Final URL
https://www.facebook.com/
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.
There are currently 10,000+ exposed email records matching the facebook.com domain. These records may be old or already resolved. The website owner should verify them before resetting passwords or locking related accounts.
Which public IPs, services, and ports does www.facebook.com expose?
The assessment observed 2 public IPs and 2 open ports for www.facebook.com. 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 facebook.com have been discovered?
The assessment observed 703+ public subdomains of facebook.com. 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
