Auror was a very special magical profession. They were usually well trained and responsible for investigating all kinds of cases involving Dark Magic, so they had to face all sorts of Dark Wizards directly;
As Vizet's understanding of the Magical World deepened, he also gained a clearer idea of so-called Dark Wizards, and understood that they were dangerous people who needed to be watched carefully;
What Dumbledore had conveyed was, in fact, a reminder for Vizet to keep an extra eye out;
Especially when concealing his original identity, he needed to restrain his behavior even more, and it would be best to think every step through carefully.
Snape had also mentioned similar views to him, telling Vizet that at least outside school, he needed to stay as vigilant as possible.
Dumbledore looked at the pensive Vizet and slowly said, "I think... you should already understand what he meant."
Vizet nodded. "Headmaster Dumbledore, I'm very grateful for that Auror's advice. I wonder if it would be convenient to give me an address..."
"No need!" Dumbledore waved his hand with a beaming smile. "I'll just tell him when the time comes."
"He's different from Alastor. He prefers a quiet life. If this matter hadn't involved Voldemort, he wouldn't have taken part in the investigation..."
"Alastor..." Vizet felt the name sounded familiar. "Headmaster Dumbledore, is that Mr. Moody's name?"
"Yes! Alastor is much more... active," Dumbledore said. "The slightest stir can put him on alert."
"In fact, Aurors who survived from that era to the present are all far more vigilant than today's Aurors... You should know that Death Eaters are no ordinary Dark Wizards!"
"Speaking of Death Eaters..." Vizet thought back to the recent tournament schedule. "Headmaster Dumbledore, is it because my schedule is special that I still haven't encountered that