#### Given the challenge name, searching on Instagram for Alexandros the cat seemed like a good start. It brought us to [this profile](https://www.instagram.com/alexandrosthecat/):#### #### ![](https://codimd.s3.shivering-isles.com/demo/uploads/upload_49e21dc6e6be0e792d73e7a8ea970c56.png)#### #### Dipping into the followers, we then found [this person, Emily Waters](https://www.instagram.com/emwaters92/):#### ![](https://codimd.s3.shivering-isles.com/demo/uploads/upload_d8c165320041d52711756714504a0183.png)#### #### > insta: alexandrosthecat#### > mum: emwaters92#### > email: [email protected]#### #### Whom we suspected to be the “mum” referenced. However, entering `DUCTF{emily_waters}` didn’t work, and we realised there was a middle name from the email:#### #### Sending an email to that email address got us an out-of-office reply:#### > Email to [email protected].   > Subject line: “Business inquiry: middle name”. > Body: “Hi there! I love your cat Alexandros! Such a cutie. I have a business inquiry regarding a particular flag. Do you mind if I ask you what your middle name is?
> Email reply from [email protected]. > Subject line: “Out of Office from September 6th Re: Business inquiry: middle name”. > Body: “Hello, I will be out of the office from Sunday, September 6th onward. If you need immediate assistance during my absence, that sounds like a you problem. Otherwise, I will probably respond to your emails as soon as possible if I return. > Kind regards, > Emily Theresa Waters.#### #### The signature has the middle name :) #### #### Flag: `DUCTF{emily_theresa_waters}`