san francisco/washington fbi investigate cyber attack another u.s. democratic party group may relate early hack democratic national committee four people familiar matter tell reuters previously unreported incident democratic congressional campaign committee dccc potential tie russian hackers likely heighten accusations far unproven moscow try meddle u.s. presidential election campaign help republican nominee donald trump miss alphabet amazon wind 'smokin `` quarter big tech russian pump price rise oil price fall democratic campaign group congress confirm computer hack kremlin deny involvement dccc cyber-attack hack party email cause discord among democrats party convention philadelphia nominate hillary clinton presidential candidate newly disclose breach dccc may intend gather information donors rather steal money source say thursday clear data expose although donors typically submit variety personal information include name email address credit card detail make contribution also unclear steal information use hack systems dccc raise money democrats run seat u.s. house representatives intrusion group could begin recently june two source tell reuters bogus website register name closely resemble main donation site connect dccc time internet traffic associate donations suppose go company process campaign donations instead go bogus site two source say source say internet protocol address spurious site resemble one use russian government-linked hackers suspect breach dnc body set strategy raise money democratic party nationwide cyber security experts u.s. officials say evidence russia engineer dnc hack release sensitive party email order influence u.s. presidential election concern agency foreign intelligence hack interfere u.s. election say clinton campaign chairman john podesta add see news dccc attack ask reuters comment whether russia play role cyber-attack dccc kremlin spokesman dmitry peskov say see point repeat yet silliness release dnc email activist group wikileaks cause uproar party appear show favoritism within dnc clinton u.s. senator bernie sanders vermont run close race nomination nov. election committee suppose neutral dnc dccc share office space south capitol street washington dccc donation process company actblue comment thursday crowdstrike california-based cyber security firm investigate dnc breach decline comment justin harvey chief security officer fidelis cybersecurity company say suspect website hack affiliate others host sophisticate malware undetected vast majority antivirus providers really rare malware would likely wield government hackers ordinary criminals say russian officials dismiss allegations moscow involvement hack u.s. political group absurd border total stupidity kremlin spokesman peskov say thursday democratic officials accuse russia hack dnc email order help trump win race white house coincidence someone hack democratic party computers almost sound like repeat watergate gilberto hinojosa chairman texas democrats say reuters report dccc hack kind dirty politics expect donald trump doubt donald trump behind say cite businessman praise russian president vladimir putin recent remark russia clinton delete email trump anger democrats week invite russia unearth tens thousands email rival clinton tenure u.s. secretary state trump say thursday comment mean sarcastic jim manley democratic strategist work senate minority leader harry reid say possibility dccc hack cause great concern prove otherwise would suggest everyone involve campaign committee operate assumption russians access everything computer systems manley say federal bureau investigation refer question dccc attack statement make monday dnc hack fbi investigate cyber intrusion involve dnc work determine nature scope matter compromise nature something take seriously fbi continue investigate hold accountable pose threat cyberspace director national intelligence jam clapper say thursday u.s. intelligence community ready make call attribution responsible dnc hack clapper speak aspen security forum acknowledge usual suspect might responsible cyber intrusion suggest work state actor rather independent hack group clapper say may aware attempt hack campaign relate group expect see november election near last two u.s. presidential cycle 2008 2012 witness barrage cyber attack range adversaries target president barack obama campaign campaign republican foes officials say exclusive fbi probe hack democratic congressional group source