For this challange we are given the following information as well as the file note.jpg
We have intercepted this screenshot of a note from a hacker's iPhone. We believe the stolen credentials are actually a flag.
Using the site StegOnline and messing around with the options gives you this image:
From here you can simply read off the flag: EPT{d0_n0t_us3_m4rk_t00l_t0_c3ns0r}