[0] Companies want the letter to say whatever their regulators and/or contractual obligations demand that it say.
Twitter is a publicly held company.
I'm sure there are conflicts of interest and some degree of confidentiality for auditors and clients, but there is a fundamental public interest of disclosure, at a minimum to the government, in the event of irregularities.
From the SEC:
"In addition, we will continue to focus on auditors. As the Supreme Court noted nearly 30 years ago in U.S. v. Arthur Young & Co., 465 U.S. 805 (1984), auditors play a crucial role in the financial reporting process by serving as the “public watchdog.” So, it is important that we carefully monitor their work and ensure that they fully comply with their professional obligations. If there is a significant restatement or if we learn about improper accounting from a whistleblower, our proactive efforts, or the media, then you can expect that we will scrutinize not only the CEO, CFO and Controller, but also the engagement partner, engagement quality reviewer, and the auditing firm as a whole. We are going to probe the quality of the audit and determine whether the auditors missed or ignored red flags, whether they have proper documentation, and whether they followed professional standards.
And it is important to remember that our ability to bring Rule 102(e) bars against auditors extends beyond instances where there are accounting irregularities at a public company. Our Rule 102(e) program is remedial in nature and meant to protect the integrity of the Commission’s processes. As a result, we can and have investigated auditors when their audits fail to meet the most basic standards, regardless of whether there was an actual problem with the auditing client. By pursuing actions over these bad audits, we can fully leverage the Division’s resources and close off access to those who shirk their responsibilities as gatekeepers to the securities markets."
From there you can see legal and institutional gravitas, ethics, and expectations of accountants and auditors of public companies. That's kind of what I'm getting at re: elevating security and certain IT roles to higher responsibility and codification.
Now, is this a smear attempt by Jack Dorsey in relation to the Elon Musk lawsuit? Eh, maybe.
https://www.investor.gov/introduction-investing/general-reso...
(search for "resign")
The SEC quote is about requiring auditors to meet their professional standards. Those standards require them to follow certain processes, things like needing to see evidence for certain things, and not both preparing the books and auditing them, and require that they not issue letters they don't actually agree with. Those standards do not require informing the public or regulators about problems they find.
There's certainly something to be said for having some codified professional standards for infosec professionals, but if public or regulator notice is something you think is important to be in those standards you shouldn't model them off of the standards for auditors, because auditors have no such professional responsibility.
I mean, if an auditor publicly reports an audit finding that is ignored by the company and his ethics demand its reporting, is he branded a "whistleblower"? I do not think so, instead it is an "auditor finding". Why does that not apply here?
It kind of dovetails with how pathetically organized IT in general is from a professional standpoint. Lawyers, Doctors, ... ?Accountants? and the like have centuries-codified procedures, principles, and the like for ethics. You generally don't get to hire one of those and tell them how to breach ethics (now, there are a lot of corrupt lawyers and a lot of corrupt accountants see: Arthur Andersen).
The exploit industry has the 0day and x days of forewarning process, so there is that, but the fact a security consultant/professional gets accused of whistleblowing when... um, isn't that sort of the point? You hire a security consultant kind of like an auditor. And if auditors find major failings and they aren't addressed, aren't they supposed to report them?
I'm pretty sure the security IT industry does not have even accountant levels of professional conduct and organizations.
As IT subsumes and infiltrates, now to the point that fundamental bill of rights / human rights are dependent on secure and functioning IT systems, it gets... a bit more important. Arguably more important than the ethics around accountants and doctors. Lawyers, because they deal with the law, are probably more important still, but it shows that IT security may be rising in import to that level.