Chicago Public Schools logo

Chicago Public Schools

cps.edu

UpGuard Security Report
Date scanned:

Security rating · scale 0–950 · grades A–F

Chicago Public Schools's UpGuard security rating is B (726 / 950), which is good. 11 of 58 external checks are currently failing, mostly in Website Security and Email.

Strong

No failing checks in Data leakage, IP/Domain Reputation, and Vulnerability Management.

Open risk

Failing checks: Secure cookies not used; CSP is not implemented; Specific ASP.NET version exposed via header; and 8 more.

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See the 58 checks behind this score

cps.edu

Security overview

UpGuard continuously monitors Chicago Public Schools's externally observable security posture across Website Security, Email, Network, DNS, Encryption, Data leakage, IP/Domain Reputation, and Vulnerability Management. The rating reflects only what can be verified from outside the organization. It is not an audit of internal controls.

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UpGuard scans Chicago Public Schools daily across 58 external risk signals. Get notified the moment something changes: a new vulnerability, a breach, or a posture shift.

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cps.edu security rating

Detailed external checks

The evidence behind the rating. 58 checks across 8 categories, 11 currently failing. Failed checks are listed first.

Website Security

  • Secure cookies not used

    When secure cookies are not used, there is an increased risk of third parties intercepting information contained in these cookies. The website configuration should be changed so that all 'Set-Cookie' headers include 'secure'.

  • CSP is not implemented

    No valid Content Security Policy is implemented. This increases the risk of XSS and clickjacking attacks.

  • Specific ASP.NET version exposed via header

    Exposing a specific ASP.NET version in the ASP.NET version header makes it easier for attackers to exploit certain vulnerabilities. The website configuration should be changed to remove this header completely.

  • Use of ASP.NET exposed via header

    Exposing the ASP.NET version header indicates that the site is built with ASP.NET, which makes it easier for attackers to exploit certain vulnerabilities. The website configuration should be changed to remove this header.

  • X-Content-Type-Options is not nosniff

    Browsers may interpret files as a different MIME type than what is specified in the Content-Type HTTP header. This can lead to MIME confusion attacks.

  • Server information header not exposed

    Ensuring the server information header is not exposed reduces the ability of attackers to exploit certain vulnerabilities.

  • X-Powered-By header not exposed

    Information about specific technology used on the server is obscured.

  • X-Frame-Options is not deny or sameorigin

    Browsers are prevented from displaying this website's content in frames. This helps mitigate clickjacking attacks.

  • HttpOnly cookies used

    Using HttpOnly cookies reduces the risk of client side script attacks, by preventing cookies being read on the client.

  • Referrer policy is not unsafe-url

    The website's Referrer Policy is not configured to allow unsafe information to be sent in the referrer header.

  • No unmaintained page detected

    The page appears to be maintained.

Email

  • DMARC policy is p=none

    DMARC policy is p=none. This provides no protection against fraudulent emails. The DMARC policy should be migrated to p=quarantine, and eventually p=reject.

  • SPF policy uses ~all

    Sender Policy Framework (SPF) record is too lenient as to which domains are allowed to send email on the domain's behalf. This record should preferably not use the ~all mechanism, as this does not instruct the mail receiver to reject messages from unauthorised sources. When DMARC is not being enforced, -all should be used on the SPF record.

  • DMARC policy exists

    DMARC protects against fraudulent emails being sent from a domain.

  • SPF enabled

    Sender Policy Framework (SPF) records prevent spammers from sending messages with forged addresses.

  • SPF syntax correct

    Sender Policy Framework (SPF) record passes basic syntax checks.

  • SPF ptr mechanism not used

    Sender Policy Framework (SPF) record does not include the ptr mechanism.

Network

  • 'HTTP' port open

    The 'HTTP' service is running and exposed to the internet. The configuration of the server should be reviewed and unnecessary ports closed.

DNS

  • DNSSEC not enabled

    DNSSEC records prevent third parties from forging the records that guarantee a domain's identity. DNSSEC should be configured for this domain.

  • No unregistered MX records detected

    No unregistered MX records that could lead to receiving mail on behalf of the target organization were detected.

  • Domain has not expired

    Domain has not expired.

  • No subdomain takeover vulnerability detected

    No dangling DNS records that could lead to subdomain takeover were detected.

  • Domain does not expire soon

    Domain does not expire within 30 days.

  • CAA enabled

    The domain contains a valid Certification Authority Authorization (CAA) record. A CAA record indicates which Certificate Authorities (CAs) are authorized to issue certificates for a domain.

Encryption

  • HTTP Strict Transport Security (HSTS) not enforced

    Without HSTS enforced, people browsing this site are more susceptible to man-in-the-middle attacks. The server should be configured to support HSTS.

  • Weak cipher suites supported in TLS 1.2

    Weak cipher suites can potentially be broken by a well resourced attacker, and should not be supported by the server unless very old devices or browsers must be supported.

  • Certificate not found on our revoked certificate list

    The site's certificate chain was checked against our list of revoked certificates.

  • SSL available

    SSL is supported for this site.

  • HTTP requests are redirected to HTTPS

    All HTTP requests are redirected to HTTPS.

  • Hostname matches SSL certificate

    The site's hostname matches the SSL certificate.

  • SSL has not expired

    SSL certificate has not expired.

  • Trusted SSL certificate

    The certificate presented by this domain was issued by a trusted certificate authority.

  • No insecure SSL/TLS versions available

    No insecure SSL/TLS versions are available for this site.

  • SSL certificate chain present in server response

    A complete SSL certificate chain was presented by the server for this domain.

  • SSL chain certificates do not expire within 20 days

    SSL intermediate and root certificates do not expire within 20 days.

  • SSL expiration period shorter than 398 days

    The SSL certificate presented by the server has an expiration period shorter than 398 days.

  • SSL has more than 20% of its valid period remaining

    SSL certificate does not expire in less than 20% of its total valid period.

  • Strong SSL algorithm

    Industry standard SHA-256 encryption in use.

  • Strong public certificate key length

    The site's public certificate provides at least 112 bits of security strength.

Data leakage

  • No open cloud storage service detected

    No cloud storage service configured to allow anonymous file listing was detected.

  • Domain index is not a listable directory

    The domain index is not a listable directory.

IP/Domain Reputation

  • Not a suspected malware provider

    This website does not appear to contain malicious code.

  • No reports of botnet activity in the last 30 days

    This IP/domain has not been reported as a source of botnet activity in the last 30 days.

  • No reports of brute force login attempts in the last 30 days

    This IP/domain did not appear on any list of IPs and domains known to perform brute force login attempts in the last 30 days.

  • No reports of malware distribution in the last 30 days

    This IP/domain has been reported for distributing malware in the last 30 days.

  • No reports of unsolicited scanning in the last 30 days

    This IP/domain has not been reported for performing unsolicited scanning in the last 30 days.

  • Not suspected of unwanted software

    This website does not appear to be attempting to install unwanted software.

  • Not a suspected phishing page

    This site does not appear to be a forgery or imitation of another website.

  • No reports of phishing activity in the last 30 days

    This IP/domain has not been reported as a phishing site in the last 30 days.

  • No reports of botnet activity in the last 90 days

    This IP/domain has not been reported as a source of botnet activity in the last 90 days.

  • No reports of brute force login attempts in the last 90 days

    This IP/domain did not appear on any list of IPs and domains known to perform brute force login attempts in the last 90 days.

  • No reports of malware distribution in the last 90 days

    This IP/domain has been reported for distributing malware in the last 90 days.

  • No reports of unsolicited scanning in the last 90 days

    This IP/domain has not been reported for performing unsolicited scanning in the last 90 days.

  • No reports of phishing activity in the last 90 days

    This IP/domain has not been reported as a phishing site in the last 90 days.

Vulnerability Management

  • Not vulnerable to CVE-2014-0160 (Heartbleed)

    A bug in OpenSSL's implementation of the TLS heartbeat extension allows access to portions of memory on the targeted host e.g. cryptographic keys and passwords.

  • Not vulnerable to CVE-2014-3566 (POODLE)

    The server does not support SSLv3, and is not vulnerable to the POODLE attack.

  • Not vulnerable to CVE-2015-0204 (FREAK)

    The server does not offer RSA_EXPORT cipher suites, so clients are not vulnerable to the FREAK attack.

  • Not vulnerable to CVE-2015-4000 (Logjam)

    The server is using strong Diffie-Hellman parameters and is not vulnerable to the Logjam attack.

Company info

Company
Chicago Public Schools
Domain
cps.edu
Employees
39k+
Location
Chicago, IL, United States
CEO
Pedro Martinez
Industry
Education
Last updated
November 4, 2026

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