Problemas de segurança do zoom: aqui está tudo o que deu errado até agora BR Atsit

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Several Dutch Zoom users who use ISP-provided email addresses suddenly found that they were in the same”company”with dozens of strangers–and could see their email addresses, user names and user photos. Criminals are trading compromised Zoom accounts on the”dark web,”Yahoo News reported. However, one Vice source implied that other video-conferencing solutions also had security flaws.

zoom users

Good what licenses do financial advisors need to have has built-in anti-tampering mechanisms to make sure that applications don’t run code that’s been altered by a third party. Standard Chartered primarily uses the rival Blue Jeans video-conferencing platform, according to two bank staffers who spoke anonymously. To defeat Guimond’s automated tool, Zoom added a Captcha challenge, which forces the would-be meeting-recording watcher to prove they’re a human.

In a somewhat misleading press announcement/blog post, Zoom trumpeted the arrival of version 5.0 of its desktop software for Windows, Mac and Linux. Despite all the bad news about Zoom, the company’s stock price surged on Thursday, gaining 9% after the announcement that the number of daily users had risen to 300 million. “China’s access to Zoom servers makes Beijing uniquely positioned to target U.S. public and private sector users,”ABC News quoted the DHS report as stating. In March, Zoom had to admit that its touted”end-to-end”encryption was not the real thing because Zoom’s own servers are always able to access the contents of meetings. Once Keybase’s technology is incorporated, that will no longer always be the case.

More malware-embedded Zoom installers

Privacy researcher Patrick Jackson noticed that Zoom meeting recordings saved to the host’s computer generally get a certain type of file name. Zoom now requires passwords by default for most Zoom meetings, although meetings hosts can turn that feature off. But a series of tweets March 30 from security researcher Felix Seele, who noticed that Zoom installed itself on his Mac without the usual user authorizations, revealed that there was still an issue.

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But under pressure from The Intercept, a Zoom representative admitted that Zoom’s definitions of”end-to-end”and”endpoint”are not the same as everyone else’s. “We recognize that we have fallen short of the community’s–and our own–privacy and security expectations,”Yuan wrote, explaining that Zoom had been developed for large businesses with in-house IT staffers who could set up and run the software. “They use preinstallation scripts, manually unpack the app using a bundled 7zip and install it to/Applications if the current user is in the admin group ,”Seele wrote. If a malicious Zoom bomber slipped a UNC path to a remote server that he controlled into a Zoom meeting chat, an unwitting participant could click on it.

Terça-feira, 10 de novembro: FTC diz que Zoom mentiu sobre segurança

Meeting passwords and waiting rooms will be required by default for all Zoom meetings, free or paid, beginning May 9, Zoom announced. Only hosts will be able to share their screens by default, but like the other settings, that can be changed. Zoom has released updates for its Windows, macOS and Linux desktop client software so that meeting IDs will not display onscreen during meetings. British Prime Minister Boris Johnson accidentally displayed a Zoom meeting ID in a tweet, and the Belgian cabinet made a similar mistake. Zoom says it use AES-256 encryption to encode video and audio data traveling between Zoom servers and Zoom clients (i.e., you and me). But researchers at the Citizen Lab at the University of Toronto, in a report posted April 3, found that Zoom actually uses the somewhat weaker AES-128 algorithm.

  • Several privacy experts, some working for Consumer Reports, pored over Zoom’s privacy policy and found that it apparently gave Zoom the right to use Zoom users’personal data and to share it with third-party marketers.
  • It can see whatever is going on in its meetings, and sometimes it may have to in order to make sure everything works properly.
  • The best way to avoid Zoom bombing is to not share Zoom meeting numbers with anyone but the intended participants.

Another source said that https://1investing.in/ zero-days weren’t selling for much money due to lack of demand. Researchers from IngSights discovered a set of 2,300 Zoom login credentials being shared in a criminal online forum. Users of Zoom’s free service will have their data handled only by servers in their regions. Sources who told Vice about the zero-days said one exploit is for Windows and lets a remote attacker get full control of a target’s computer. The catch is that the attacker and the target have to be on the same Zoom call. Zero-days are hacks that take advantage of vulnerabilities the software maker doesn’t know about, and which users have little or no defense against.

O zoom ainda é seguro para uso na maioria dos casos

The Citizen Lab is not disclosing the details yet, but has told Zoom of the flaw. In her own blog post, she announced that Zoom was bringing in other well-regarded information-security firms and researchers to improve its security. However, Zoom in the past week has given paid meeting hosts the option of avoiding Zoom servers in specific regions, including China and North America. Most of the NYAG’s complaints with Zoom involved issues discussed in this story you’re reading. Most of the stipulations Zoom agreed to are things the company is already doing, including making passwords mandatory and using better encryption.

The best way to avoid Zoom bombing is to not share Zoom meeting numbers with anyone but the intended participants. In Zoom’s announcement of the upcoming April 26 desktop-software update, Zoom said it would be upgrading the encryption implementation to a better format for all users by May 30. “While some of the accounts’only’included an email and password, others included meeting IDs, names and host keys,”Maor wrote. These accounts were not compromised as the result of a Zoom data breach, but instead through credential stuffing.

  • Criminals are trading compromised Zoom accounts on the”dark web,”Yahoo News reported.
  • Standard Chartered primarily uses the rival Blue Jeans video-conferencing platform, according to two bank staffers who spoke anonymously.
  • In other words, any user, owner or administrator of a free Zoom account, and end users of paid accounts, won’t be entitled to human help.
  • Zoom now requires passwords by default for most Zoom meetings, although meetings hosts can turn that feature off.
  • Hackers are apparently offering to sell two”zero-day”exploits in Zoom to the highest bidder, Vice reports.

But it’s such a simple flaw that it’s hard to imagine no one else noticed it before. Boom, he’d have access to any Zoom account created using the targeted email address. The URL of the notification webpage would have a unique identification tag in the address bar.

Windows malware injection

Until Zoom pushed out a series of updates this past Tuesday, Zoom meeting recordings were not required to be password-protected. If you had a valid Zoom account, Cisco Talos explained in a blog post, you could pretend that you worked at any organization and get the full names and chat IDs of every registered Zoom user whose email address used that organization’s email domain. Cisco Talos researchers said Zoom’s meeting chat function made it too easy for outsiders to find all Zoom users in an particular organization. To put that in perspective, daily usage peaked at 200 million people per day in March, the company said on April 1. Zoom announced May 7 that due to its technical-support staff being overwhelmed with calls, it would be able to give personal technical assistance only to”owners and administrators”of paid accounts. Many of these sites are being used in phishing attacks to grab victims’Zoom usernames and passwords, and similar scams are leveraging rival video-conferencing platforms such as Google Meet and Microsoft Teams.

researcher

We thought that problem had been fixed then, along with the security flaw it created. Until late March, Zoom sent iOS user profiles to Facebook as part of the”log in with Facebook”feature in the iPhone and iPad Zoom apps. After Vice News exposed the practice, Zoom said it hadn’t been aware of the profile-sharing and updated the iOS apps to fix this. If a Zoom user running Windows clicked on it, a video posted by Baset showed, the user’s computer would try to load and run the software. The victim would be prompted to authorize the software to run, which will stop some hacking attempts but not all.

Sixgill told Yahoo it had spotted 352 compromised Zoom accounts that included meeting IDs, email addresses, passwords and host keys. Some of the accounts belonged to schools, and one each to a small business and a large healthcare provider, but most were personal. Every other company considers an endpoint to be a user device–a desktop, laptop, smartphone or tablet–but not a server. And every other company takes”end-to-end encryption”to mean that servers that relay messages from one endpoint to another can’t decrypt the messages. “Aside from personal accounts, there were many corporate accounts belonging to banks, consultancy companies, educational facilities, healthcare providers, and software vendors, amongst others,”IntSight’s Etay Maor wrote in a blog post April 10.

video

The hacker could capture the password”hash”and decrypt it, giving him access to the Zoom user’s Windows account. “On April 7, Zoom reported to us that they had implemented a server-side fix for the issue,”the researchers said. Since Zoom servers can decrypt Zoom meetings, and Chinese authorities can compel operators of Chinese servers to hand over data, the implication is that the Chinese government might be able to see your Zoom meetings. Several privacy experts, some working for Consumer Reports, pored over Zoom’s privacy policy and found that it apparently gave Zoom the right to use Zoom users’personal data and to share it with third-party marketers. The host of the Zoom meeting can mute or even kick out troublemakers, but they can come right back with new user IDs.

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Hackers are apparently offering to sell two”zero-day”exploits in Zoom to the highest bidder, Vice reports. Consumer Reports said you should know that everything in a video meeting may be recorded, either by the host or another participant. The Independent also found that Di Stefano’s cellphone had earlier been used to access a Zoom meeting at the Evening Standard, another London newspaper. That meeting was followed by a Financial Times piece about Evening Standard furloughs and pay cuts. Keybase makes user-friendly software to easily and securely encrypt messaging and social media posts. Frankly, these are longstanding standard policies at many other online companies, so we’re a little surprised that they weren’t already Zoom policies.

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