Short answer: stop sending sensitive files as email attachments. Email is like a postcard – it's copied, forwarded and lingers around, and you lose control the second you hit send. Instead, share via a secure service where the file is encrypted, password protected and only accessible for as long as it needs to be.

Why is it dangerous to email sensitive files?

Email feels safe because it is everyday. But that's exactly why it's risky. Here are the problems:

  • You lose control.Once the file is sent, the recipient can save, print and forward it however they like. You can't take it back.
  • Wrong recipient.Autofill in email programs means that the wrong "Anna" easily becomes the recipient. With an attachment, the damage is already done.
  • It remains forever.The file is in your sent folder, the recipient's inbox, maybe in several forwardings - for years.
  • Inboxes get hacked.If someone accesses an email account, they can scroll back and find old attachments with personal information, contracts or invoices.

For personal data – customer details, social security numbers, health data, salaries – this is also a GDPR issue. If such a thing is leaked via e-mail, it can become a notifiable incident.

What is meant by secure file sharing?

Secure file sharing means that the file is protected along the way and thatyou decide the rules. Three things make a service secure:

  • Encryption.The file is turned into unreadable code during transfer, so that whoever intercepts it en route cannot read its contents.
  • Access control.You are sharing a link, not the file itself. The link can be password protected and only given to the right person.
  • Time limit and traceability.The link can expire after a date or number of downloads, and you can see who opened it.

How do I share files securely in practice?

  • Use a sharing service, not attachments.Upload the file and share a protected link. Many cloud services you already have support this.
  • Put a password on the link- and send the password in another channel, for example SMS, not in the same email.
  • Limit in time.Let the link go out when the case is complete.
  • Share with the right person, not "everyone with the link".Invite by name or email whenever possible.
  • Clean.Delete shared files that are no longer needed. Less stored data = less to leak.

Isn't a password on the file itself enough?

A password-protected document is better than nothing, but not enough. The password still has to be sent somehow – often in the same email, which makes it pointless – and weak document passwords can be brute force. Secure file sharing solves the whole chain: transfer, access and lifetime. If you want both, protect the documentandshare it via a secure service.

Rule of thumb: if you would be uncomfortable if the information ended up with the wrong person - do not email it as an attachment.

Common mistakes to avoid

  • Send the password in the same email as the link.
  • Use "anyone with the link can see" for sensitive material.
  • Leave old share links active forever.
  • Believe that internal sharing is harmless - even internally, sensitive material should be limited to the right people.

Do you want routines that last?

Secure file sharing is just as importanthabit as if tools. ZORC helps Swedish companies set up safe working methods and the right tools - and viaSwedish Cyber ​​Securitywe review how the data actually flows with you, so that sensitive files are not leaked via old email habits. Do you want to get away from risky emailing without making everyday life more complicated?Contact ZORC and we will help you.