Please simply ignore these mails. They are scam/spam sent to arbitrary e-mail addresses the perpetrators find on the internet. Nothing has been hacked or recorded, as:
Please note: There are some versions of such e-mails that include passwords that you use for other sites. These passwords were stolen trough cybercrime attacks from big online service providers like Adobe, Yahoo, LinkedIn or MySpace. If one of your passwords is mentioned in the scam e-mail, please update the passwords of all your affected accounts as soon as possible. (This is also the reason why it is highly recommended to use different passwords for each online account).
If you want to check if your e-mail address has been compromised during one of these hacks, please have a look at:
https://haveibeenpwned.com/ and
https://sec.hpi.de/ilc/search?lang=enFor more information on secure passwords, please have a look at entry
Requirements for user login passwords in our support forum.
Please note that we received reports in November 2018 about mails with .doc attachments, that seem to come from a colleague or client. These attachments are virus-infected (include a Trojan) and will compromise your PC if opened and the Word macros are enabled. More information can be found at:
https://www.heise.de/security/meldung/Achtung-Rechnungs-Trojaner-vom-Kollegen-4221813.htmlWe recommend using Libre Office or to "Disable all Macros without Notification" in Microsoft Word as described here:
https://support.office.com/en-us/article/enable-or-disable-macros-in-office-files-12b036fd-d140-4e74-b45e-16fed1a7e5c6