Port 3000HBCI (Homebanking Computer Interface)

HBCI is a German online-banking protocol; TCP port 3000 is also commonly used by unrelated web apps.

transport: tcp · udp
in transit: encrypted
assignment: official
risk: 4/10
lookups: 0

also known as FinTS, Homebanking Computer Interface

3 other services are registered on port 3000. compare all 4 →

Technical Details

what runs on :3000

HBCI/FinTS banking sessions normally use TCP: the client initiates a dialog with the bank and exchanges structured, segmented request-and-response messages. The registry also lists UDP, but UDP is not the usual transport for banking sessions. HBCI security procedures provide authentication and may provide message encryption; many PIN/TAN deployments also use TLS, so do not infer the exact protection from the port alone. Port 3000 is not a reliable HBCI fingerprint: Grafana and various development web servers also commonly listen on TCP 3000, and their HTTP traffic is unrelated to HBCI.

Security Information

exposure of :3000

risk score

4/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

network services averages 2.7 across 1,345 ports — this one sits 1.3 above.

in transit

encrypted

payloads are protected on the wire

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

A genuine HBCI/FinTS endpoint handles sensitive banking operations and should be exposed only as required by the bank’s service design, with current security procedures and transport protection. Authentication and encryption are part of normal deployments, but an open port alone does not establish that those protections are present. If the listener is a web application instead, assess its own authentication and patch status; development servers should not be exposed publicly.

Record

iana registry entry

port: :3000
service: HBCI (Homebanking Computer Interface)
transport: TCPUDP
encryption: tls / encrypted
assignment: iana registered
risk: 4/10caution
category: Network Services
usage: The IANA assignment is for HBCI, the German home-banking protocol, now largely associated with its successor FinTS. Banking clients use it to exchange requests with a bank’s HBCI/FinTS server. On other networks, TCP 3000 is also a common default for web applications such as Grafana and development servers.
lookups: 0rank 993
added: 2026-09-26
updated: 2026-09-26
references: IANA service name registry — port 3000

Something wrong?

This record is maintained by the engineers who use port 3000. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-26.

01edit any field on a page of its own
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edit this record →back to the registry

Related Ports

all 1,345 in network services →

the 8 most looked-up other ports in network services — 1,345 ports carry that label.

port	service	proto	category	risk	views
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:6543	Jetnet	UDP	Network Services	caution	65.3k
:5938	TeamViewer	TCPUDP	Remote Access	caution	65.0k
:8291	Winbox MikroTik Admin	TCP	Security	caution	62.9k
:3233	WhiskerControl Protocol	TCPUDP	Network Services	caution	61.9k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:3128	Tatsoft Default HTTP Proxy	TCP	Web Services	caution	46.8k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :3000HBCI (Homebanking Computer Interface)

Technical Details

Security Information

Related Ports

Port 3000HBCI (Homebanking Computer Interface)