Doctor Octopus is, in what is not remotely a surprise to anyone except the parole board, not on the straight and narrow. In fact, he appears to be planning to take revenge on Spiderman for the last six times he went to prison. He's not working with Kingpin and doesn't seem to be working with anyone else. He is intending to smoke Spiderman out by threatening something near Central Park either Tuesday or Friday of next week, probably in the afternoon, then lure Spiderman into an elaborate deathtrap which uses Chitauri technology. Several diagrams of possible deathtrap designs follow, with advice about how to prepare to escape them.

The last paragraph is "I don't know whether Spiderman's villains read this website, but it is not exactly a secure means of communication. My Signal number is 718-462-3635."

...Sasha has literally no idea how anyone could possibly know that, but whoever runs this website knows a lot of things that Sasha has no idea how anyone could possibly know. He studies up on ways to escape deathtraps; he's planning to bail if they don't need Actually Specifically Spiderman In Particular to deal with it, but better safe than sorry. 

He looks up what the hell a Signal number is, then downloads Signal and texts the website owner. 

thank you for the help 

this is spiderman by the way 

I can facetime if you want proof but idk if this app supports it, I'm new to everything 

And he's getting a Signal videocall!

The person he's talking to has their video off.

Good thing he was already wearing the suit. "Thank you again for the help." He doesn't hide his accent most of the time, but when he has the mask on the extra anonymity just makes him feel more secure. 

"No problem." He pauses. "Can you show me that you're spiderman and not some dude in a Halloween costume?"

He angles the phone so the person on the other end can see, and then shoots a web from his wrist to the ceiling of the building he's sitting on. "I'd swing around but I have a 'no being on the phone while swinging from tall buildings' policy." 

The guy's voice sounds a little weird. "That... makes sense. So, uh. I know things about you. Which is not really helpful for you because you... also know things about you. But I know things about your villains too and that might... come in more handy?"

"I'd like to know your information about me just to get a sense of how much you know, if that's something you're alright with sharing. But yes, the villain information is more directly useful." 

"That's not a question that really has, um, an answer? What I know about you. I mean."

"...I don't know what that means, I'm sorry." 

"I'm, uh, a mutant? And my power is... pattern recognition, I guess? I can look at information and see what it implies? --It's a really dumb power, it's mostly good for solving sudoku really fast and running a fansite."

That sounds like it'd be good for more things than just a fansite but it's not like Sasha's ever poked at it.

"— oh, good, some of the crimes you've listed me as having stopped are crimes I didn't think anyone knew I was there for and I was worried I was getting careless — you don't have to take them down, to be clear, I don't mind people knowing I just wasn't sure how you knew." 

"I figured. It would be better. If people knew about all the good things you did?"

"Thank you. Again." 

The person on the other end can't see that he's smiling, because of the mask, but he can hear it. 

The person on the other end is quiet for an uncomfortable period of time. 

Finally he says, "Uh, I got... lucky? With Doc Ock."

"— like, by sheer chance you happened to be looking at the right information? or something else?" 

"He has, um, the arms? So whenever he goes anywhere it shows up on a bunch of true super crime websites. So I had a lot of data? And Norman Osbourne can just take off his armor and walk around."

"Oh, that makes sense — seriously, thank you." 

"If you tell me more things about what your villains are up to, I can probably... help? Better. I mean, you don't have to, you have no reason to trust me or anything, but like it might help to know what people are doing? I can text you with anything I can get from publicly available information anyway."

"It's been quiet the last couple of weeks, which is good but makes me nervous. I don't get a lot of advance warning and most of the things I do wind up making the news but I can text you things too." 

"That's... good. Uh. A lot of stuff that doesn't seem like much to normal people can still help me? I just. --I'm not powerful enough to get things out of information that aren't there in the first place."

"Makes sense — uh, Kingpin's doing a thing with rent pricing? It's not actually illegal but usually that means he doesn't have any supervillainous schemes planned for the near future." 

"Oh, wait. Kingpin has a lot of publicly available information, doesn't he? Sorry. I probably should have thought of that by myself. Sorry."

"No, you don't have to be sorry, you were right, there's a lot of publicly available information about Kingpin in general but his supervillain stuff tends to go under the radar. Can't imagine why." 

"No, I mean, there'll be patterns in it-- places where the money obviously isn't going where it's supposed to be going or has come from nowhere, or where his companies' decisions don't make any sense-- I can definitely tell you what Kingpin's up to."

He sounds significantly less anxious.