Days after her mother plead not guilty in the college admissions scandal, Lori Loughlin's daughter Isabella "Bella" Giannulli shut down her Instagram account

Isabella “Bella” Giannulli appears to be taking some time away from social media.

Over a month after news broke about her parents’ alleged involvement in the headline-making college admissions scandal, Lori Loughlin and Mossimo Giannulli‘s eldest daughter deactivated her popular Instagram account on Tuesday.

The 20-year-old’s mother had already done the same to both her Instagram and Twitter accounts back on March 12, the day the news broke. As of Wednesday morning, Bella still remains on Twitter, where she has 15.1K followers.

Bella’s sister, 19-year-old Olivia Jade Giannulli, has yet to deactivate her social media channels — including her Instagram (which has 1.4 million followers), her Twitter (195,000 followers) or her YouTube page (the most successful, at nearly 2 million subscribers).

Before Bella walked way from Instagram, she had remained silent on her pages in the wake of the scandal, as had Olivia Jade. Both disabled comments from their posts. Olivia Jade has done the same on YouTube, as well.

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Olivia Jade Giannulli, Lori Loughlin and Isabella Rose Giannulli
| Credit: Gabriel Olsen/Getty

Loughlin, 54, and Giannulli, 55, were both arrested back in March on a felony charge of conspiracy to commit mail fraud and honest services mail fraud.

Documents allege that the couple “agreed to pay bribes totaling $500,000 in exchange for having their two daughters designated as recruits to the USC crew team — despite the fact that they did not participate in crew — thereby facilitating their admission to USC.”

Neither Bella nor Olivia Jade have been charged in connection with the scheme. It is not known whether they were even aware of it.

On Monday, the couple pleaded not guilty to all charges. If convicted, they face up to 20 years in prison for each charge.

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Mossimo Giannulli and Lori Loughlin
| Credit: Donato Sardella/Getty Images for LACMA

In this week’s PEOPLE cover story, a legal source tells PEOPLE that while the threat of time behind bars is there, Loughlin and Giannulli are most afraid for their daughters.

“It’s not in their best interest for this to go to trial, and Lori knows it. Because if it goes to trial, the girls will have to take the stand, and be cross examined by a prosecution that wants nothing more than to put a notch on their belt,” the legal source says.

The source adds, “Lori is very afraid that her daughters will have to testify. That will traumatize them even more.”

For Loughlin, what matters most is the opinion of her daughters. “Yes, she can think about the public perception of her, but that’s nothing compared to what her daughters think of her,” the legal source explains.

Previously, a source detailed to PEOPLE how Loughlin and Giannulli “always wanted the best” for their daughters and often put pressure on their kids to succeed at school despite the fact that the girls did not appear to have an interest in academics.

“Olivia and Isabella’s personalities were always very different from their parents. They are average students. They have never been obsessed with school and didn’t seem to care that much,” the source said. “They attended school because their parents made them. Their focus was never about getting straight As.”

“It was always clear that it was the parents that pushed them to go to school,” the source continued. “Olivia always talks about her vlog. This is her passion. She never really understood why she needs to go to school.”