All she had to do was get into his laptop and give herself permission. It's a feature of the operating system, on the Mac at least. You've been able to do this for perhaps 25 years. That was the feature that allowed rudimentary networks to be devised. This feature is used these days by IT departments and prying bosses.
There was no evidence one way or the other that Jodi was doing anything with TA's computer as far as hacking, IIRC. However, we don't have her computer.
I'm not certain what kind of a forensic trail "sharing" would leave. If you sync your iphone with your desktop computer (i.e. do a data transfer) does it leave a trail? If you pick up your incoming mail on another computer when you're on vacation, does it leave a trail? All Jodi had to do was the latter. AFAIK.
As far as the phone, I'm not a big phone user. However, it might have worked for Jodi's purposes to text him frequently (as she did), then get hold of his phone and see what numbers he was dialing/texting when he didn't text her back. He frequently didn't text her back.
You might have been able to access other computers for 25 years, but I would just have to wonder if Jodi knew she could do it, knew how to set up these rudimentary networks, and had the capability and tools to set it up so that Travis nor the authorities would discover any of it. Jodi wasn't an IT person or a boss with the capability to pay someone to set up a spying network. And then I'd have to ask for what reason she needed all this access to his computer when most of the items she'd want are on the web, accessible by knowing his username and passwords for certain sites.
I don't know what forensic trails can be left because I'm not a forensic analyst and I don't use their software. But your computer will surely log that it allowed another computer to access it, and it seems like a basic thing a police forensic department could find in the computer logs or registry. When an IT person logged into my laptop from somewhere else, I had, in fact I still have, an icon on my desktop from the software he asked me to access for him to do it. When it logged itself out on him during a period where he was talking to me on the phone and not moving his computer, I had to give him permission again.
I don't know if all software like that works that way, but whether she gave his computer permission or not, I had already considered when I replied that there would be a forensic trail. I believe there are sync logs when devices sync with each other. How it was in 2007, I don't know. If I had to guess if a computer would log that you accessed your mail on it, I'd say yes. It would have an internet history of what sites were accessed that day. If you do not clear your browsing history, yes, the log will be there with a recording of where the computer went. As a matter of fact, I had a client access her gmail on my laptop, and for months and months, her user name would pop up under mine when google wanted to know which email I wanted to access. I never tried to access hers, but it didn't go away until someone told me I had to manually go in and tell Google to stop displaying her email as an option for me. I'm assuming I couldn't access it if I wanted to because she hadn't saved her password in my browser to my knowledge. If she had, then I would have been able to get into it. I also believe, but I can't corroborate it right now, that your email profile might tell you the last time you logged in--even if not from where, just like other social media tells people the last time someone was in the media. Flores told her they'd be able to know she accessed his email and from where, so apparently authorities have software to figure it out.
If she could get her hands on his phone again after he already caught her texting other women on it, then yeah, she could have accessed it and looked at what he was doing. If he hadn't put a lock on the phone. But my strong belief is just what JM said about her. When she feels wronged or upset, she confronts people right away. That's her history, which it why I'm hard-pressed to believe she sat on the kinds of texts and exchanges Travis was having with other women while he was sleeping with her. It's just very hard to believe.
As for her computer, I can't recall if they had her laptop or what happened to it. But they did have that damaged hard drive. It's where there were some penis pics and pics of her pre surgery breasts were located.
