Dogecoin News: Why Is Dogecoin (DOGE) Price Down Today? Security Jitters, Weak Altcoin Sentiment, and Key Support Test

Dogecoin (DOGE) fell 2.66% to $0.217 in the past 24 hours, underperforming the broader crypto market (-2.06%). The decline stems from renewed security fears, cooling altcoin sentiment, and technical weakness near a critical support zone.1. Security Concerns After Qubic Attack Proposal (Bearish Impact)The Qubic blockchain community voted to direct hashpower toward Dogecoin, sparking fears of a potential 51% attack — a vulnerability that can enable double-spending or chain reorganizations.Market reaction: Panic selling followed, with futures open interest down 8% as leveraged traders cut exposure.Network trust: The threat raises doubts about DOGE’s resilience to coordinated mining disruptions, similar to Qubic’s recent attack on Monero.What to watch: Whether Qubic follows through on the plan and how DOGE’s hash rate stability holds in the coming sessions.2. Altcoin Sentiment Cools as Retail Hype Fades (Bearish Impact)Broader altcoin enthusiasm has weakened, hurting meme coins like DOGE that rely on retail-driven inflows.Google Trends: Searches for “alt season” dropped 50% in the past week.Bitcoin Dominance: BTC’s market share rose to 58.63%, diverting liquidity away from altcoins.DOGE Volume: Spot trading volume fell 37% in 24h, signaling weaker buyer participation despite whales accumulating 680M DOGE.What to watch: Whether retail flows re-enter meme coins, or if capital continues rotating into Bitcoin and large-cap alts.3. Technical Breakdown at $0.22 (Mixed Impact)DOGE’s price action shows a loss of bullish momentum after failing to hold the $0.22 level.Indicators: RSI at 49.77 (neutral-bearish) and MACD at -0.0017 reflect fading momentum.Key Support: $0.21 is now a make-or-break level. A close below risks a retest of $0.20, with Fibonacci analysis pointing to $0.189 support as the next downside target. What to watch: If DOGE can defend $0.21 and rebound, or if bears force a breakdown toward $0.19–$0.20.DOGE Faces Triple ThreatDogecoin’s decline highlights a triple threat of:Security jitters over a potential 51% attack.Weakening altcoin sentiment amid fading retail hype.Technical breakdown below key support levels.While whale accumulation signals some long-term conviction, short-term traders remain cautious ahead of Fed Chair Powell’s Jackson Hole speech on Aug. 23, which could shift broader risk appetite.