Latest cybersecurity reporting from selected sources.

iRhythm disclosed a cyberattack via third-party apps where patient and proprietary data was stolen, followed by a ransom demand. iRhythm Technologies is a U.S.-based digital healthcare company specializing in remote cardiac monitoring and arrhythmia detection. Its best-known product is the Zio, a wearable patch that continuously records a patient’s heart rhythm for up to several […]

Also, Kali365 Bypasses MFA, Silent Ransom Group Makes Office CallsThis week, active duty troops tracked, Kali365 bypassed MFA, Australian lawmakers phished on WhatsApp, Silent Ransom escalated IT scams, Lithuania and German hospitals disclosed breaches, pro-Russian infrastructure providers arrested, CISA warned of active LiteSpeed exploitation.

Horizon Healthcare RCM Hints at Paying Ransom in Data Theft IncidentHorizon Healthcare RCM is the latest revenue cycle management software vendor to report a health data breach involving ransomware and data theft. The firm's breach notification statement suggests that the company paid a ransom to prevent the disclosure of its stolen information.

Coinbase, a cryptocurrency exchange with over 100 million customers, has disclosed that cybercriminals working with rogue support agents stole customer data and demanded a $20 million ransom not to publish the stolen information. [...]

There are indications that U.S. healthcare giant Change Healthcare has made a $22 million extortion payment to the infamous BlackCat ransomware group (a.k.a. "ALPHV") as the company struggles to bring services back online amid a cyberattack that has disrupted prescription drug services nationwide for weeks. However, the cybercriminal who claims to have given BlackCat access to Change's network says the crime gang cheated them out of their share of the ransom, and that they still have the sensitive data that Change reportedly paid the group to destroy. Meanwhile, the affiliate's disclosure appears to have prompted BlackCat to cease operations entirely. 

Microsoft and identity management platform Okta both disclosed this week breaches involving LAPSUS$, a relatively new cybercrime group that specializes in stealing data from big companies and threatening to publish the information unless a ransom demand is paid. Here's a closer look at LAPSUS$, and some of the low-tech but high-impact methods the group uses to gain access to targeted organizations.