# Nimbusec Website Security Monitor Issue Types (Short)
[MALWARE](https://docs.nimbusec.com/link/365#bkmrk-malware)[WEB SHELL](https://docs.nimbusec.com/link/365#bkmrk-web-shell)[APPLICATION](https://docs.nimbusec.com/link/365#bkmrk-application)[TLS](https://docs.nimbusec.com/link/365#bkmrk-tls)[CONTENT](https://docs.nimbusec.com/link/365#bkmrk-defacement)[BLACKLIST](https://docs.nimbusec.com/link/365#bkmrk-blacklist)[REPUTATION](https://docs.nimbusec.com/link/365#bkmrk-reputation)
##### **Malware**
MalwareMalicious code fragments are found on a Web page. Typical examples would be, amongst others, credit card skimmers, crypto miners or tech scams.
SEO-SpamIf changes on a website are detected while acting as 'googlebot' instead of the default browser agent a warning for suspicious behavior is created
##### **Web Shell**
Web ShellMalicious code patterns are found in source files based on behaviour patters and signature database of the Nimbusec server agent
##### **Application**
CMS VersionAn application running on an outdated verrsion has been found on the website
CMS VulnerableAn application with a possible vulnerability has been found on the website
CMS TamperedCore file of WordPress change and are only generated by Nimbusec's server agent. However, Nimbusec cannot not distinguish between legitimate and malicious changes.
##### **TLS**
TLS ProtocolUnsafe TLS protocol allowed in configuration
TLS CiphersuiteUnsafe TLS cipher allowed in configuration
TLS SigalgOutdated hash algorithm was used in the creation of the certificate
TLS NotrustUntrasted root certificate
TLS HostnameHostname or alternative name does not match the certificate
TLS ExpiresThe TLS certificate will expire soon or has already expired
TLS LegacySymantec legacy certificate in use
TLS Misconfigured ChainThe received certificate chain was incomplete or misconfigured
TLS Revoked CertThe certificate was revoked
No HTTPS RedirectHTTP website does not redirect to HTTPS
##### **Content**
DefacementThe visual appearance of a website was changed to distribute social, political or just for fun messages to the visitor
Content ViolationChanges of the content of a Web page are detected. These change may be intended by the website owner or may be the result of a malicious attack. However, Nimbusec does not distinguish between legitimate and malicious changes.
**Blacklist**
BlacklistThe domain which is subject to review is found on blacklists monitored by Nimbusec
##### **Reputation**