Imprint

This is an English translation. Only the German original is legally binding.

Name and Address

Karl-Heinz Meisters
Diplom-Psychologe
Jahnstraße 20
53225 Bonn
Phone: 0228-38757676

Please use this phone number for organisational matters – for example, to initiate contact or for general questions.

For confidential content I am available via secure communication channels: for example, by prior arrangement in a personal meeting, by telephone via a dedicated number, or via the Signal messenger. Contact details on request.

Email

kontakt@k-meisters.de

Signal Messenger

Encrypted communication via the privacy‑friendly Signal messenger is possible. Contact details on request.

Responsible for content according to § 55 (2) RStV

Karl-Heinz Meisters (contact details as above)

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Disclaimer

This is an English translation. Only the German original is legally binding.

General Information

The content published on this website is provided for information purposes only and to support your personal and professional development. The information provided does not constitute medical, therapeutic, or psychotherapeutic advice. It is not intended to replace an individual, professional diagnosis or treatment.

Services

I, Karl-Heinz Meisters, am a Diplom‑Psychologe. My services are limited to conversations aimed at personal development and clarification. I am neither a physician, a Heilpraktiker, nor a psychotherapist and do not practise medicine within the meaning of § 1 (2) Heilpraktikergesetz. I explicitly point out that I do not make diagnoses, do not treat or alleviate illnesses, and do not provide medical services. My services do not include legal advice and are not to be understood as legal services.

No Substitute

The content published on this website and the techniques discussed in sessions must never be understood as a substitute for professional medical, therapeutic, or psychotherapeutic treatment. In the case of specific health problems or medical questions, it is essential to consult a qualified physician, Heilpraktiker, or psychotherapist.

Definition of “Mandate”

Within the scope of my psychological advisory services, the term “mandate” refers to a formal advisory assignment. This also applies to derived terms such as “advisory client.” My services do not include legal advice and are not to be understood as legal services.

Liability Disclaimer

Despite the greatest possible care in compiling and checking the content, no guarantee can be given for the completeness, accuracy, or timeliness of the information provided. Use of the content of this website is at your own risk. No liability is assumed for direct or indirect damages resulting from reliance on or disregard of the information presented.

External Links

Where this website provides links to external sites, this is solely as a service to the user. I have no influence on the content of those sites and therefore accept no responsibility for them. Responsibility for the content of linked sites lies exclusively with their operators.

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Privacy Policy

This is an English translation. Only the German original is legally binding.

Version: 27 September 2025 - en

1. Controller

Karl-Heinz Meisters

Jahnstraße 20
53225 Bonn

Email: kontakt@k-meisters.de

2. General Information on Data Processing

This website provides information about my advisory services. No cookies are used, and no external content (such as Google Maps, Fonts, or tracking tools) is embedded.

3. Server Log Files

When visiting this website, information is automatically collected by the web server and stored in so‑called server log files. This includes:

• Browser type and version
• Operating system
• Referrer URL
• Hostname of the accessing device
• Date and time of the server request
• IP address

Processing of these log data is based on my legitimate interest pursuant to Art. 6 (1) lit. f GDPR. My legitimate interest is to ensure the proper and trouble‑free operation of my systems, to detect security incidents and attacks, and to resolve technical problems. No merging with other data sources takes place.

To comply with the principles of data minimisation and purpose limitation, these log data are subject to a defined deletion cycle: log files are reviewed monthly. During this review, all records older than one month are deleted. Thus, log data remain in my system for a maximum of two months, unless longer storage is required for specific security incidents or by law.

Legal basis: Art. 6 (1) lit. f GDPR (legitimate interest).

4. Email Communication (Technical Service Provider)

The provision of the email address is handled by a technical service provider mailbox (formerly mailbox.org). This provider processes personal data (e.g. IP addresses, email content, metadata) exclusively on my behalf on the basis of Art. 28 GDPR (data processing agreement). The conclusion of a contract specifically designed for professional secrecy holders ensures stricter data protection and special confidentiality standards.

5. External Links

This website contains links to external third‑party websites. The respective operator is solely responsible for their content and data protection practices. Once you leave this website, the privacy policies of the external site apply. A permanent content review of the linked pages is not possible, but will be carried out if there are specific indications of legal violations.

6. Contact via Email

If you contact me by email, personal data such as your email address and the content of your message will be processed. These data are used exclusively for handling your request and will not be passed on to third parties.

Please note that emails are transmitted without encryption. It therefore cannot be ruled out that unauthorised third parties may gain access to the transmitted data. For sensitive information, I recommend contacting me by telephone or via the Signal messenger.

Legal basis: Art. 6(1)(b) GDPR (contract/request) or Art. 6(1)(f) GDPR (legitimate interest in communication).

7. Contact by Telephone

If you contact me by telephone, personal data such as your phone number, time and duration of the call, and the content of the conversation will be processed, insofar as this is necessary to handle your request.

Processing takes place exclusively for communication in the context of initiating or carrying out an advisory relationship. Telecommunications providers process connection data under their own data protection responsibility in accordance with the German Telecommunications Act (TKG).

Legal basis: Art. 6 (1) lit. b GDPR (contract initiation / performance) or Art. 6 (1) lit. f GDPR.

No disclosure to third parties takes place, and the data will be deleted once the purpose no longer applies, unless retention obligations exist.

8. Contact via Signal Messenger

Using the Signal messenger provides you with a privacy‑friendly alternative for contacting me – this is voluntary and at your request. Signal uses state‑of‑the‑art end‑to‑end encryption, so your messages are readable only by the intended recipient. In the course of use, personal data such as your phone number may be processed; however, communication content itself is not stored on Signal’s servers.

Note on IP data in Signal voice and video calls: In voice and video calls via Signal, the IP addresses of callers may be transmitted depending on the type of connection. They are used only temporarily to establish the connection, and I do not gain knowledge of the IP address. These details are therefore not stored.

Please note that use of the Signal channel is voluntary and there is no contractual entitlement to the continuous provision of this communication channel. Both parties also have the option to initiate deletion of messages – either manually or via an automatic deletion function you select. Once deleted, these contents cannot be restored and can no longer be used for further advisory purposes.

For more information on Signal’s data protection measures and technical safeguards, please refer to the Signal Privacy Policy.

Legal basis: Art. 6 (1) lit. a GDPR (consent) and Art. 6 (1) lit. b GDPR.

9. Notice on Special Categories of Data (Art. 9 GDPR)

In the course of any contact – whether initial or ongoing – you may voluntarily provide information that falls into the special categories of personal data under Art. 9 GDPR (e.g. information on health, sexuality, religion, beliefs, or psychological stress). I process such data only if it is necessary to handle your request or to provide my service, and only if you have expressly consented to this processing beforehand (Art. 9 (2) lit. a GDPR). You may withdraw your consent at any time.

I therefore ask you to transmit sensitive personal data only in the intended context – either in response to a specific request from me or after your prior explicit consent to processing. Should I unexpectedly receive unsolicited sensitive data outside this context, I reserve the right to delete this information immediately and irretrievably, unless it is required to process a specific request.

Note: Transmission of sensitive data by unencrypted email is strongly discouraged. Please use secure communication channels if you wish to send me sensitive information.

10. Protection of Third‑Party Personal Data

In the context of my advisory services, personal data of third parties – for example, information about supervisors, colleagues, or other related persons – may also be processed. Such data are collected and processed only to the extent strictly necessary for the performance of my services. I am committed to the principles of data minimisation and purpose limitation to ensure the privacy of the third parties concerned.

Comprehensive disclosure of such data is generally not provided, as the right of access under Art. 15 GDPR primarily applies to the individuals directly concerned – unless I am obliged to disclose due to legal requirements, official orders, or other binding provisions.

11. Exclusively Human Communication with Advisory Partners

I never use artificial intelligence (AI) to communicate directly with my advisory partners. All interactions in this area are carried out exclusively through human expertise and personal consultation.

12. Use of Local AI for Analytical Tasks

If AI is used, for example for internal analytical tasks and supporting processes, this is done exclusively through locally installed, open AI solutions. Currently, the llama3.1 model under Ollama for Linux is used – if necessary, I also rely on other locally operating open‑source language models. All data are processed strictly internally, so no information is transmitted over the internet.

13. Privacy‑Friendly Offline Translation Solutions

I attach great importance to ensuring that the language of my advisory partners does not become a barrier to communication. The official advisory and correspondence languages in my advisory environment are German, English, and Spanish. To guarantee barrier‑free communication in other languages without compromising data protection, I use privacy‑friendly local machine translation.

For translation tasks, processing takes place exclusively locally. All data to be translated are processed directly on the device, without any transmission over the internet. In this way, I ensure that the highest data protection standards are maintained and that language barriers do not restrict access to my advisory services.

14. Processing of Client Data

Within the scope of my advisory services, client data are processed exclusively in pseudonymised form. No direct attribution to a natural person takes place. This approach constitutes a technical and organisational measure pursuant to Art. 32 GDPR and serves to ensure a high level of confidentiality.

To further safeguard confidentiality, the following measures are implemented:

• Use of emails as containers for anonymised records
• Zero‑knowledge storage within the infrastructure of Tuta.com
• End‑to‑end and client‑side encryption of all content
• Access protection through strong authentication and encrypted transmission
• Data minimisation and regular deletion once the purpose ceases to apply or statutory retention periods expire
• No transfer to third countries outside the EU/EEA

14a. Processing of Referrer Data

For the purpose of providing my advisory services, I also process personal data of referrers (e.g. name, contact details, institution). These data are not pseudonymised but are used solely for communication and organisational purposes. Processing takes place via the same secure communication channels (e.g. encrypted email via Tuta.com, Threema or Signal). The legal basis is Art. 6(1)(b) GDPR (contract or pre‑contractual measures) or Art. 6(1)(f) GDPR (legitimate interest in efficient cooperation).

15. Technical and Organisational Measures (TOMs)

In order to ensure data protection and data security, I have implemented extensive technical and organisational measures pursuant to Art. 32 GDPR. These measures are based on the current state of the art and are regularly reviewed and adapted.

A data processing agreement pursuant to Art. 28 GDPR has been concluded with Tuta.com (Germany), which also covers special requirements for professional secrecy holders. Tuta operates a zero‑knowledge architecture: all data are encrypted on the client side before reaching the servers. The provider has no access to content or keys. In addition to transport encryption (TLS), end‑to‑end and client‑side encryption are applied. Storage takes place exclusively in German data centres.

Additional measures:

• Access protection through strong authentication and encrypted transmission
• Data minimisation and purpose limitation: only data necessary for the advisory service are processed
• Regular deletion once the purpose ceases to apply or statutory retention periods expire
• No transfer to third countries outside the EU/EEA

16. Storage Period and Deletion Deadlines

Personal data are stored only for as long as necessary for the respective purposes. Longer storage takes place only if statutory retention periods exist or legitimate interests require it. As soon as the purpose ceases to apply and no legal obligations prevent deletion, the data will be deleted.

Server log data are reviewed monthly. During this review, all records older than one month are deleted. Thus, log data remain in my system for a maximum of two months, unless longer storage is required for specific security incidents or by law.

Data from contact requests (by email, telephone, or Signal messenger) are deleted once the communication has been completed and no further storage is required.

Data may exceptionally be excluded from deletion if:

• statutory retention obligations exist (e.g. under tax law)
• they are required for the establishment or defence of legal claims
• statutory documentation obligations exist

17. Your Rights

You have the right at any time to:

• Access pursuant to Art. 15 GDPR
• Rectification pursuant to Art. 16 GDPR
• Erasure pursuant to Art. 17 GDPR
• Restriction of processing pursuant to Art. 18 GDPR
• Data portability pursuant to Art. 20 GDPR
• Object to processing pursuant to Art. 21 GDPR

To exercise your rights, please contact the responsible address mentioned above.

18. Right to Lodge a Complaint with a Supervisory Authority

You have the right to lodge a complaint with a data protection supervisory authority regarding the processing of your personal data.

19. Changes to this Privacy Policy

This privacy policy may be amended at any time due to legal changes or internal adjustments. The current version is available on this page.

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