Acute emergency or imminent danger? Police emergency number 110  ·  BSI citizen hotline 0800 274 1000
All contact details without guarantee – in case of doubt, the official source applies. V223
Cyberruf Logo CYBERRUF Hotline for cyber incidents
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Federal state · HH

Report a cyber incident
in Hamburg

State capital: Hamburg  ·  Responsible: Landeskriminalamt Hamburg – ZAC

Schleswig-Holstein Bremen Niedersachsen Mecklenburg-Vorpommern Brandenburg Berlin Sachsen-Anhalt Nordrhein-Westfalen Sachsen Thüringen Hessen Rheinland-Pfalz Saarland Baden-Württemberg Bayern
For businesses & authorities

Zentrale Ansprechstelle Cybercrime
Landeskriminalamt Hamburg – ZAC
Phone +49 40 4286-75455
Email zac@polizei.hamburg.de
Website Open official ZAC page ↗
Overview All police ZACs (business) ↗
The ZAC is there for businesses, authorities, associations and institutions – not for private individuals. Please check availability on the official page, as contact details may change.
Acute emergency

Imminent danger?

110

In ongoing attacks with immediate danger, always call the police emergency number first.

For private individuals

Report & advice

Private individuals file a report with the police of Hamburg – conveniently online:

Open the police Onlinewache ↗

IT security advice from the BSI:

0800 274 1000
bsi.bund.de ↗

Federal level

BKA / KRITIS

Operators of critical infrastructure (KRITIS) and federal authorities contact the ZAC of the Federal Criminal Police Office (BKA):

+49 611 55-15037
zac@bka.bund.de

Free first-aid tool · for businesses

CYBERsicher Notfallhilfe

Official, free online tool from the Transferstelle Cybersicherheit im Mittelstand: via a self-check, businesses quickly receive initial recommended actions and suitable contact points.

Go to CYBERsicher Notfallhilfe ↗ More materials & checklists ↗
First aid

First steps in a cyber incident

01

Disconnect

Disconnect affected systems from the network – do not switch off, to preserve traces.

02

Secure

Document screenshots, emails, log data, amounts and timestamps.

03

Block

Block access, change passwords, inform bank/providers.

04

Report

Contact the responsible body – ZAC (businesses) or Onlinewache (private).

Private service providers

IT service providers for incident response

The following companies are not official bodies. This listing is based solely on inclusion in the official BSI list of qualified APT response service providers (Section 3 BSIG) – it is not a recommendation by Cyberruf. Assignment is by company headquarters; the BSI list alone is authoritative and complete.

intersoft consulting services AG

Headquarters: Hamburg  ·  BSI-qualifiziert (APT-Response)

Open website ↗

View the full BSI list ↗

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