The moment I connect to my ISP my iBook's internal modem begins sending\nand receiving, whether or not I have launched any app. It never stops.\nIt's always communicating. According to the Send & Receive activity\nbars of the Internal Modem window the modem is sometimes communicating\nat a low or intermediate rate, sometimes at the max.\n\nThe Pricess Listing window shows the highest % CPU apps to be\nInternet Connect (10 - 15%)\nWindow Manager (0 - 3%)\nATSServer(0 - 9%)\nSystemUIServer (0 - 3%)\nand others\nout of 37 processes running. The rankings vary wildly.\n\n(As I was typing this note (Thoth 1.7.2) a mysterious new process\nshowed up in 4th place and went away before I could interrogate it. Its\nname was an unintelligible string and its user was neither root nor me\nbut "???". Others with different names and "???" User are popping up\nand disappearing within the ranking too. Sometimes there are 1, 2 or 3,\nmost of the time none. Their names are never repeated. They do affect\nthe count of active processes. Bulletin: one just showed up at the top\nof the % CPU ranking with 6884%! What the heck?)\n\nMy system and my apps are set up to check manually for updates. I do\nthis every week or so, but this modem activity is perpetual.\n\nI use no AV protection but the Firewall is up.\n\nThe system: iBook 600MHz, 14" dual-USB, 640MB, 20GB; OS X 10.2.8\n\nShould I suspect that my system has been compromised?